(scheduled) June 18, 2024: Semin Yoo (유세민), “TBA”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
(scheduled) June 4, 2024: Semin Yoo (유세민), “TBA”, Rookies Pitch, Seoul National University, Seoul, Korea.
(scheduled) May 7, 2024: Semin Yoo (유세민), “TBA”, Discrete Analysis Seminar, Yonsei University, Seoul, Korea.
(scheduled) May 3, 2024: Semin Yoo (유세민), “An invitation to spectral graph theory: expander mixing lemma”, Algebra Seminar, Korea University, Seoul, Korea.
(scheduled) April 19, 2024: Semin Yoo (유세민), “Improved upper bounds for the largest size of Diophantine m-tuples”, 2024 KMS Spring Meeting (April 18-20), Daejeon Convention Center, Daejeon, Korea.
(scheduled) April 19, 2024: Alexander Clifton, “Odd Covers of Cliques”, 2024 KMS Spring Meeting (April 18-20), Daejeon Convention Center, Daejeon, Korea.
(scheduled) April 19, 2024: Donggyu Kim (김동규), “Baker-Bowler theory for Lagrangian Grassmannians”, 2024 KMS Spring Meeting (April 18-20), Daejeon Convention Center, Daejeon, Korea.
April 6, 2024: Rutger Campbell, “Counting well-quasi-ordered down-sets”, 98th KPPY Seminar, Kyungpook National University, Daegu, Korea.
April 4, 2024: Linda Cook, “A polynomial strengthening of the Kühn-Osthus theorem”, Discrete Math Seminar, Princeton University, Princeton, NJ, USA.
March 21, 2024: Alexander Clifton, “Odd covers of graphs”, Discrete Analysis Seminar, Yonsei University, Seoul, Korea.
March 12, 2024: Linda Cook, “On polynomial degree-boundedness”, Discrete Math Seminar, IBS Discrete Math Group, Daejeon, Korea.
March 9, 2024: Donggyu Kim (김동규), “Orthogonal matroids over tracts”, 30th KIAS Combinatorics Workshop (March 8-9), KIAS, Seoul, Korea.
February 14, 2024: Sebastian Wiederrecht, “Packing even directed circuits quarter-integrally”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
2023
December 27, 2023: Linda Cook, “On polynomial degree-boundedness”, 29th KIAS Combinatorics Workshop (December 26-28), Shilla Stay Haeundae, Busan, Korea.
December 27, 2023: Jinha Kim (김진하), “An Eisenbud-Goto type inequality for Stanley-Reisner ideals and simplicial complexes”, 29th KIAS Combinatorics Workshop (December 26-28), Shilla Stay Haeundae, Busan, Korea.
December 26, 2023: Sebastian Wiederrecht, “Bipartite treewidth”, 29th KIAS Combinatorics Workshop (December 26-28), Shilla Stay Haeundae, Busan, Korea.
December 4, 2023: Ben Lund, “Almost spanning distance trees in subsets of finite vector spaces”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
November 29, 2023: Alexander Clifton, “Saturated Partial Embeddings of Planar Graphs”, Open University Discrete Mathematics Seminar, Online, Open University, Milton Keynes, UK.
November 8, 2023: Linda Cook, “Detecting a long even hole”, Minato Lab Seminar, Group of Computer Algorithms (Minato Lab), Kyoto University, Kyoto, Japan.
November 7, 2023: Linda Cook, “Reuniting 𝜒-boundedness with polynomial 𝜒-boundedness”, Discrete Optimization Seminar, Research Institute for Mathematical Sciences (RIMS), Kyoto University, Kyoto, Japan.
November 6, 2023: Sebastian Wiederrecht, “Structural Parametrizations of the Maximum Independent Set Problem”, Mathematical Research Seminar, University of Primorska, Koper, Slovenia.
October 28, 2023: Donggyu Kim (김동규), “Hamiltonicity of basis graphs of even delta-matroids”, 2023 KMS Annual Meeting (October 26-28), Seoul National University, Seoul, Korea.
October 28, 2023: Alexander Clifton, “Saturated partial embeddings of planar graphs”, 2023 KMS Annual Meeting (October 26-28), Seoul National University, Seoul, Korea.
October 17, 2023: O-joung Kwon (권오정), “The grid theorem for vertex-minors”, 2023 Vertex-Minor Workshop (October 15-20), SONO Belle Jeju, Jeju, Korea.
October 16, 2023: Sang-il Oum (엄상일), “Survey on vertex-minors”, 2023 Vertex-Minor Workshop (October 15-20), SONO Belle Jeju, Jeju, Korea.
October 7, 2023: Sebastian Wiederrecht, “Delineating half-integrality of the Erdős-Pósa property for minors”, 97th KPPY Combinatorics Workshop, Kyungpook National University, Daegu, Korea.
October 5, 2023: Ben Lund, “Almost spanning distance trees in subsets of finite vector spaces”, Colloquium, Department of Mathematics, Chungbuk National University, Cheongju, Korea.
September 20, 2023: Linda Cook, “Reuniting $\chi$-boundedness with polynomial $\chi$-boundedness”, Graphes@Lyon (a joint seminar between the graph theory groups LIP and LIRIS, ENS de Lyon and Université Claude Bernard Lyon), Lyon, France.
September 19, 2023: Donggyu Kim (김동규), “Orthogonal matroids over tracts”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
September 5, 2023: Sebastian Wiederrecht, “Delineating half-integrality of the Erdős-Pósa property for minors”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 22, 2023: Sang-il Oum (엄상일), “Applications of Discrete Mathematics (이산수학의 쓰임새)”, Tuesday Special Lecture (화요특강), Seoul National University Bounding Hospital, Seongnam, Korea.
August 22, 2023: Linda Cook, “Orientations of $P_4$ bind the dichromatic number”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 17, 2023: Alexander Clifton, “Covers of triangular grids”, 2023 Combinatorics Workshop (August 16-18), Yonsei University, Seoul, Korea.
August 9, 2023: Sang-il Oum (엄상일), “Reuniting 𝜒-boundedness with polynomial 𝜒-boundedness”, 28th KIAS Combinatorics Workshop (August 8-9), KIAS, Seoul, Korea.
August 2, 2023: J. Pascal Gollin, “(Lecture 3) Locally Finite Graphs with Ends: An Introduction to Topological Infinite Graph Theory”, Lecture Series on Combinatorics at Hanyang University (August 1-2), Hanyang University, Seoul, Korea.
August 1, 2023: J. Pascal Gollin, “(Lecture 1) Infinite Graphs: Compactness, Transfinite Induction, and Other Basic Methods”, Lecture Series on Combinatorics at Hanyang University (August 1-2), Hanyang University, Seoul, Korea.
July 18, 2023: Jungho Ahn (안정호), “Twin-width of subdivisions”, 2nd Workshop on Combinatorics and Graphs (July 17-18), Yeungnam University, Gyeongsan, South Korea.
June 29, 2023: O-joung Kwon (권오정), “A survey on the Erdős–Pósa property”, The 2nd China-Korea Young Scholars’ Symposium on Discrete Mathematics (June 29-30), Tianjin, China.
June 15, 2023: Rutger Campbell, “Counting well-quasi-ordered down-sets”, Graphs and Matroids Seminar, University of Waterloo, Waterloo, Canada.
June 7, 2023: Donggyu Kim (김동규), “Prime vertex-minors of a prime graph”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 6, 2023: J. Pascal Gollin, “A structural theory for odd minors”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 6, 2023: Rutger Campbell, “Well-quasi-ordered down-sets in combinatorial posets”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 5, 2023: Sebastian Wiederrecht, “Universal obstructions in graph minors”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 5, 2023: Jungho Ahn (안정호), “Twin-width of random graphs”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 5, 2023: Kevin Hendrey, “The exact threshold for zero sum cycles in complete digraphs”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 5, 2023: Alexander Clifton, “Essential k-covers of the cube by hyperplanes”, CanaDAM 2023 (June 5-8), University of Manitoba and University of Winnipeg, Winnipeg, Canada.
June 2, 2023: O-joung Kwon (권오정), “Depth parameters for digraphs and obstructions”, 28th KIAS Combinatorics Workshop (June 1-3), Utop Ubless Hotel, Jeju, Korea.
June 1, 2023: J. Pascal Gollin, “Structural theory for odd-minors”, 28th KIAS Combinatorics Workshop (June 1-3), Utop Ubless Hotel, Jeju, Korea.
June 1, 2023: Jungho Ahn (안정호), “Twin-width of random graphs”, 28th KIAS Combinatorics Workshop (June 1-3), Utop Ubless Hotel, Jeju, Korea.
May 25, 2023: Jungho Ahn (안정호), “Twin-width of subdivisions”, 1st Twin-Width Workshop (May 22-26), Paul-Langevin center (CAES), Aussios, France.
May 1, 2023: Rutger Campbell, “Well-quasi-ordered down-sets in combinatorial posets”, Monash Discrete Mathematics Research Group Seminar, Monash University, Melbourne, Australia.
April 29, 2023: Debsoumya Chakraborti, “Colorful Hamilton cycles in random graphs”, 2023 KMS Spring Meeting (April 27-29), Daejeon Convention Center, Daejeon, Korea.
April 29, 2023: Donggyu Kim (김동규), “Orthogonal matroids over tracts”, 2023 KMS Spring Meeting (April 27-29), Daejeon Convention Center, Daejeon, Korea.
April 28, 2023: Ben Lund, “Exceptional projections in finite vector spaces”, 2023 KMS Spring Meeting (April 27-29), Daejeon Convention Center, Daejeon, Korea.
March 30, 2023: Debsoumya Chakraborti, “Rainbow extremal problem for color-critical graphs”, DMS Combinatorics Seminar, Auburn University, Online. Auburn, Alabama, USA.
March 30, 2023: Sang-il Oum (엄상일), “Building the hierarchy of graph classes”, Colloquium, Department of Mathematics, Kyunghee University, Seoul, Korea.
March 15, 2023: Jinha Kim (김진하), “Collapsibility of non-cover complexes of graphs, and the minimal exclusion sequence”, Moscow-Beijing Topology Seminar, Online, Russia and China.
March 7, 2023: Alexander Clifton, “Ramsey Theory for Diffsequences”, ISU Discrete Math Seminar, Iowa State University, Iowa, USA.
February 24, 2023: Alexander Clifton, “Covering the hypercube and other grids”, 27th KIAS Combinatorics Workshop (February 23-24), KIAS, Seoul, Korea.
January 28, 2023: O-joung Kwon (권오정), “Group vertex-arboricity of group-labelled graphs”, Workshop on Graph Coloring and Related Topics (January 28-29), Konkuk University, Seoul, Korea.
January 28, 2023: Sang-il Oum (엄상일), “Improper colorings regarding Hadwiger’s conjecture”, Workshop on Graph Coloring and Related Topics (January 28-29), Konkuk University, Seoul, Korea.
January 24, 2023: O-joung Kwon (권오정), “A Half-Integral Erdős-Pósa Theorem for Directed Odd Cycles”, ACM-SIAM Symposium on Discrete Algorithms (SODA23) (January 22-25), Grand Hotel Mediterraneo, Florence, Italy.
January 23, 2023: Sebastian Wiederrecht, “Excluding Single-Crossing Matching Minors in Bipartite Graphs”, ACM-SIAM Symposium on Discrete Algorithms (SODA23) (January 22-25), Grand Hotel Mediterraneo, Florence, Italy.
January 16, 2023: Sebastian Wiederrecht, “Excluding a single-crossing matching minor”, Mathematical Research Seminar, University of Primorska, Koper, Slovenia.
January 15, 2023: Hongseok Yang (양홍석), “Introduction to the tensor-programs framework, a PL approach that helps analyse theoretical properties of deep learning.”, Languages for Inference workshop (LAFI 2023), Boston, USA.
January 12, 2023: Sebastian Wiederrecht, “Excluding Single-Crossing Matching Minors in Bipartite Graphs”, AlGCo Seminar, LIRMM, Online, France.
December 28, 2022: Debsoumya Chakraborti, “Colorful combinatorics”, Meet-in-the-Middle, Online, Institute for Advancing Intelligence, TCG Centres for Research and Education in Science and Technology (TCG CREST), West Bengal, India.
December 19, 2022: Sang-il Oum (엄상일), “Γ-graphic delta-matroids and their applications”, 2022 BrainLink - Combinatorial Algebraic Geometry (2022 우수연구자교류지원 기술교류회 - 조합 대수기하학 국제교류회) (December 18-21), Korean Federation of Science and Technology Societies (한국과학기술단체총연합회), Sheraton Grand Incheon Hotel, Incheon, Korea.
December 1, 2022: Sang-il Oum (엄상일), “Building the hierarchy of graph classes”, Colloquium, Department of Mathematics, Hanyang University, Seoul, Korea.
November 15, 2022: Sebastian Wiederrecht, “Excluding single-crossing matching minors in bipartite graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
November 11, 2022: Sang-il Oum (엄상일), “Building the hierarchy of graph classes”, Combinatorics Today Series 2022, Institut Teknologi Bandung, Online, Indonesia.
November 11, 2022: Linda Cook, “Forbidding some induced cycles in a graph”, Tutte Colloquium, University of Waterloo, Waterloo, Canada.
November 9, 2022: Debsoumya Chakraborti, “Rainbow generalizations of combinatorial results”, Combinatorics & Graph Theory Seminar, National University of Singapore, Singapore, Singapore.
November 8, 2022: Jungho Ahn (안정호), “Unified almost linear kernels for generalized covering and packing problems on nowhere dense classes”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
November 7, 2022: Sebastian Wiederrecht, “Killing a vortex”, Discrete Math Seminar, Hanyang University, Seoul, Korea.
November 4, 2022: Sang-il Oum (엄상일), “A combinatorial path taken by June E Huh”, Fields Symposium, POSTECH, Pohang, Korea.
October 19, 2022: Jungho Ahn (안정호), “The proper conflict-free $k$-coloring problem and the odd $k$-coloring problem are NP-complete on bipartite graphs”, 2022 Global KMS International Conference (October 18-21), Seoul, Korea.
October 13, 2022: O-joung Kwon (권오정), “언제 그래프가 트리처럼 분해될까?”, Colloquium, Ewha Woman's University, Seoul, Korea.
October 11, 2022: Alexander Clifton, “Covers of grids”, Discrete Mathematics Seminar, University of Nebraska-Lincoln, Online, USA.
October 1, 2022: Jungho Ahn (안정호), “The proper conflict-free k-coloring problem and the odd k-coloring problem are NP-complete on bipartite graphs”, 2022 Combinatorics Workshop (September 30-October 1), GIST, Gwangju, Korea.
September 30, 2022: Alexander Clifton, “Reconstruction and Edge Reconstruction of Triangle-free Graphs”, 2022 Combinatorics Workshop (September 30-October 1), GIST, Gwangju, Korea.
September 27, 2022: Alexander Clifton, “Ramsey Theory for Diffsequences”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
September 13, 2022: Sebastian Wiederrecht, “Killing a vortex”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 31, 2022: J. Pascal Gollin, “Product structure of graph classes with bounded treewidth”, AlgoLoG Seminar, Technical University of Denmark, Kongens Lyngby, Denmark.
July 12, 2022: J. Pascal Gollin, “Product structure of graph classes with bounded treewidth”, Forschungsseminare, University of Hamburg, Hamburg, Germany.
July 11, 2022: Kevin Hendrey, “Product Structure of Graph Classes with Bounded Treewidth”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
June 27, 2022: Ben Lund, “Radial projections in finite space”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
June 23, 2022: Sang-il Oum (엄상일), “Independent domination of graphs with bounded maximum degree”, Seymour 70+x workshop (June 20-24), ENS de Lyon, Lyon, France.
June 23, 2022: Linda Cook, “Forbidding any orientation of $P_4$ and any clique bounds the dichromatic number”, Seymour 70+x workshop (June 20-24), ENS de Lyon, Lyon, France.
June 18, 2022: J. Pascal Gollin, “Product structure of graph classes with bounded treewidth”, 25th KIAS Combinatorics Workshop (June 15-18), Utop Ubless Hotel, Jeju, Korea.
June 18, 2022: Ben Lund, “Maximal 3-wise intersecting families”, 25th KIAS Combinatorics Workshop (June 15-18), Utop Ubless Hotel, Jeju, Korea.
June 16, 2022: Debsoumya Chakraborti, “Recent developments in graph saturation”, 25th KIAS Combinatorics Workshop (June 15-18), Utop Ubless Hotel, Jeju, Korea.
June 16, 2022: O-joung Kwon (권오정), “A survey on the Erdős–Pósa property”, 25th KIAS Combinatorics Workshop (June 15-18), Utop Ubless Hotel, Jeju, Korea.
June 10, 2022: J. Pascal Gollin, “A unified Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Graz Combinatorics Seminar, Graz University of Technology, Graz, Austria.
June 2, 2022: O-joung Kwon (권오정), “Graph minor theory and beyond”, Colloquium, KAIST, Daejeon, Korea.
June 1, 2022: Donggyu Kim (김동규), “Stronger versions of Tutte’s wheel theorem for vertex-/pivot-minors”, Student Symposium in Combinatroics 2022 (May 30-June 3), Online, Australia.
May 31, 2022: Debsoumya Chakraborti, “Majority dynamics on random graphs”, Seminar, International Centre for Theoretical Sciences, Bengaluru, India.
May 27, 2022: O-joung Kwon (권오정), “Well-partitioned chordal graphs”, KSIAM 2022 Spring Meeting (May 27-29), Institute for Basic Science, Daejeon, Korea.
May 24, 2022: Jinha Kim (김진하), “Fractional Helly theorem for Cartesian products of convex sets”, Topology and Combinatorics Seminar, Ajou University, Suwon, Korea.
May 23, 2022: Debsoumya Chakraborti, “Existence of transversal in a Latin rectangle”, Joint CS-Math Seminar, Chennai Mathematical Institute, Chennai, India.
May 20, 2022: Ben Lund, “Radial projections in vector spaces over finite fields”, STCS Seminar, School of Technology and Computer Science, Tata Institute of Fundamental Research, Mumbai, India.
May 19, 2022: Dabeen Lee (이다빈), “Solving distributionally robust optimization under Wasserstein ambiguity”, Neuro-Symbolic AI Seminar, IBM Thomas J. Watson Research Center, Yorktown Heights, USA.
May 18, 2022: Ben Lund, “Radial projections in vector spaces over finite fields”, Theory Seminar, IIT Bombay, Bombay, India.
May 17, 2022: Debsoumya Chakraborti, “Mixing time and expanders”, STCS Colloquium, School of Technology and Computer Science, Tata Institute of Fundamental Research, Mumbai, India.
May 12, 2022: O-joung Kwon (권오정), “Graph minor theory and beyond”, Colloquium, Yonsei University, Seoul, Korea.
April 28, 2022: Jungho Ahn (안정호), “Bounds for the twin-width of graphs”, 2022 KMS Spring Meeting (April 28-29), Online, Korea.
April 28, 2022: Jinha Kim (김진하), “Independent domination of graphs with bounded maximum degree”, 2022 KMS Spring Meeting (April 28-29), Online, Korea.
April 28, 2022: Donggyu Kim (김동규), “A stronger version of Tutte’s wheel theorem for vertex-minors”, 2022 KMS Spring Meeting (April 28-29), Online, Korea.
April 28, 2022: Duksang Lee (이덕상), “A chain theorem for sequentially 3-rank-connected graphs with respect to vertex-minors”, 2022 KMS Spring Meeting (April 28-29), Online, Korea.
April 11, 2022: O-joung Kwon (권오정), “Introduction to graph minor theory”, Colloquium, Hanyang University, Seoul, Korea.
April 1, 2022: J. Pascal Gollin, Kevin Hendrey, “A unified Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Discrete Maths Seminar, Monash University, Melbourne, Australia.
March 28, 2022: Ben Lund, “Thresholds for incidence properties in finite vector spaces”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 22, 2022: O-joung Kwon (권오정), “Reduced bandwidth: a qualitative strengthening of twin-width in minor-closed classes (and beyond)”, Graphs and Matroids Seminar, Matroid Union, Online.
March 14, 2022: Tuan Anh Do, “Rank- and tree-width of supercritical random graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 8, 2022: Sang-il Oum (엄상일), “Obstructions for matroids of path-width at most k and graphs of linear rank-width at most k”, Graphs and Matroids Seminar, Matroid Union, Online.
March 7, 2022: Kevin Hendrey, “A unified Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups (revisited)”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
February 28, 2022: Sang-il Oum (엄상일), “Obstructions for matroids of path-width at most k and graphs of linear rank-width at most k”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
February 25, 2022: Sang-il Oum (엄상일), “Independent domination of graphs with bounded maximum degree”, SCMS Combinatorics Seminar, Shanghai Center for Mathematical Sciences, Fudan University, Shanghai, China.
February 23, 2022: Jinha Kim (김진하), “Independence complexes of graphs with no induced cycles of length divisible by 3”, 24th KIAS Combinatorics Workshop (February 22-24), Shilla Stay Haeundae, Busan, Korea.
February 22, 2022: Sang-il Oum (엄상일), “Building the hierarchy of graph classes”, 24th KIAS Combinatorics Workshop (February 22-24), Shilla Stay Haeundae, Busan, Korea.
February 21, 2022: Donggyu Kim (김동규), “A stronger version of Tutte’s wheel theorem for vertex-minors”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
February 15, 2022: Jinha Kim (김진하), “Independent domination of graphs with bounded maximum degree”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
February 8, 2022: J. Pascal Gollin, “A unified Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
January 25, 2022: O-joung Kwon (권오정), “Reduced bandwidth: a qualitative strengthening of twin-width in minor-closed classes (and beyond)”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
January 20, 2022: O-joung Kwon (권오정), “Treewidth and applications”, Seminar, Hanyang University, Seoul, Korea.
January 7, 2022: O-joung Kwon (권오정), “A unified Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Oberwolfach workshop on Graph Theory (January 2-8), Mathematisches Forschungsinstitut Oberwolfach (MFO), Oberwolfach, Germany.
January 6, 2022: Sang-il Oum (엄상일), “Obstructions for matroids of path-width at most k and graphs of linear rank-width at most k”, Oberwolfach workshop on Graph Theory (January 2-8), Mathematisches Forschungsinstitut Oberwolfach (MFO), Oberwolfach, Germany.
2021
December 21, 2021: Jungho Ahn (안정호), “Bounds for the twin-width of graphs”, 2021 Combinatorics Workshop (December 20-22), Bloomvista, Yangpyeong, Korea.
December 21, 2021: Minki Kim (김민기), “Fractional Helly theorem for Cartesian products of convex sets”, 2021 Combinatorics Workshop (December 20-22), Bloomvista, Yangpyeong, Korea.
December 20, 2021: Linda Cook, “When all holes in a graph have the same length”, 2021 Combinatorics Workshop (December 20-22), Bloomvista, Yangpyeong, Korea.
December 14, 2021: Tuan Tran, “Exponential decay of intersection volume with applications on list-decodability and sphere-covering bounds”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
December 14, 2021: Linda Cook, “Detecting a long even hole”, Algorithms Seminar, Utrecht University, Utrecht, Netherlands.
December 14, 2021: J. Pascal Gollin, “A unified Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups III: Mangoes and Blueberries”, Forschungsseminar, University of Hamburg, Hamburg, Germany.
December 14, 2021: J. Pascal Gollin, “Obstructions for bounded branch-depth in matroids”, Forschungsseminar, University of Hamburg, Hamburg, Germany.
December 4, 2021: Tuan Tran, “Exponential Decay of Intersection Volume with Applications on List- decodability and Gilbert-Varshamov Type Bound”, KSIAM 2021 Annual Meeting (December 2-5), BEXCO, Busan, Korea.
December 4, 2021: Linda Cook, “When all holes in a graph have the same length”, KSIAM 2021 Annual Meeting (December 2-5), BEXCO, Busan, Korea.
December 3, 2021: Debsoumya Chakraborti, “Bipartite Independence Number”, KSIAM 2021 Annual Meeting (December 2-5), BEXCO, Busan, Korea.
November 30, 2021: Rutger Campbell, “Counting Well-Quasi-Ordered Down Sets”, Graphs and Matroids, Matroid Union, Online.
November 25, 2021: Donggyu Kim (김동규), “Eigenvalues and parity factors in graphs”, KAIST MATH GRADUATE STUDENT SEMINAR, KAIST, Daejeon, Korea.
November 22, 2021: O-joung Kwon (권오정), “Reduced bandwidth: a qualitative strengthening of twin-width in minor-closed classes (and beyond)”, Banff Workshop "Graph Product Structure Theory" (November 21-26), Banff International Research Station (BIRS), Banff, Canada.
November 8, 2021: Tuan Tran, “Maximal 3-wise intersecting families”, SCMS combinatorics seminar, Shanghai Center for Mathematical Sciences, Fudan University, Shanghai, China.
November 4, 2021: Sang-il Oum (엄상일), “Obstructions for matroids of path-width at most k and graphs of linear rank-width at most k”, AlGCo Seminar, Online, Département Informatique, LIRMM, Montpellier, France.
November 2, 2021: Ben Lund, “Maximal 3-wise intersecting families”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
October 28, 2021: J. Pascal Gollin, “Counting cliques in 1-planar graphs”, Combinatorics Seminar, University of Birmingham (Online), Birmingham, UK.
October 26, 2021: Dabeen Lee (이다빈), “Conic Mixed-binary Sets: Convex Hull Characterizations And Applications”, INFORMS Annual Meeting (October 24-27), Anaheim, CA, USA.
October 26, 2021: Donggyu Kim (김동규), “𝝘-graphic delta-matroids and their applications”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
October 26, 2021: Tuan Tran, “Exponential decay of intersection volume with applications on list-decodability and Gilbert-Varshamov type bound”, The 1st Workshop on Developments in Combinatorics (October 26-27), Shandong University, Beijing, China.
October 25, 2021: Linda Cook, “Detecting a long even hole”, Topics in Algorithmic Graph Theory, University of Haifa, Online, Israel.
October 21, 2021: Donggyu Kim (김동규), “𝝘-graphic delta-matroids and their applications”, 2021 KMS Annual Meeting (October 20-22), Online, Korea.
October 21, 2021: Jungho Ahn (안정호), “Towards constant-factor approximation for chordal/distance-hereditary vertex deletion”, 2021 KMS Annual Meeting (October 20-22), Online, Korea.
October 21, 2021: Minki Kim (김민기), “Leray numbers of tolerance complexes”, 2021 KMS Annual Meeting (October 20-22), Online, Korea.
October 13, 2021: Ben Lund, “Simple proofs for finite Furstenberg sets”, TCS Seminar, IIT Bombay, Bombay, India.
October 8, 2021: Sang-il Oum (엄상일), “Obstructions for graphs of linear rank-width at most k”, Graz Combinatorics Seminar, Technical University of Graz, Graz, Austria.
October 6, 2021: Debsoumya Chakraborti, “An approximate version of Brualdi-Ryser-Stein conjecture”, Discrete Math Seminar, School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, USA.
September 27, 2021: Jinha Kim (김진하), “The homotopy type of the independence complex of ternary graphs”, SCMS combinatorics seminar, Shanghai Center for Mathematical Sciences, Fudan University, Shanghai, China.
September 24, 2021: J. Pascal Gollin, “Counting cliques in 1-planar graphs”, 96th KPPY Combinatorics Workshop, Online, Daegu, Korea.
September 17, 2021: O-joung Kwon (권오정), “László Lovász – 완벽 그래프(perfect graph)에 대한 이야기”, IIBS 2021-2 Lunch Seminar, Soongsil University, Seoul, Korea.
September 13, 2021: Dabeen Lee (이다빈), “Recent progress on chance-constrained optimization”, Department Seminar, Sungkyunkwan University, Suwon, Korea.
September 7, 2021: Dabeen Lee (이다빈), “Mixing sets, submodularity, and chance-constrained optimization”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 17, 2021: Linda Cook, “Two results on graphs with holes of restricted lengths”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 10, 2021: Duksang Lee (이덕상), “Intertwining connectivities for vertex-minors and pivot-minors”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
June 29, 2021: Jeong Ok Choi (최정옥), “Invertibility of circulant matrices of arbitrary size”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
June 8, 2021: O-joung Kwon (권오정), “Classes of intersection digraphs with good algorithmic properties”, Discrete Math Seminar, IBS Discrete Mathematics Group, Online, Korea.
May 25, 2021: Ben Lund, “Limit shape of lattice Zonotopes”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
May 18, 2021: J. Pascal Gollin, “Enlarging vertex-flames in countable digraphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
May 5, 2021: J. Pascal Gollin, “A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups II”, Forschungsseminar, University of Hamburg, Hamburg, Germany.
May 4, 2021: J. Pascal Gollin, “A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups I”, Forschungsseminar, University of Hamburg, Hamburg, Germany.
April 30, 2021: Debsoumya Chakraborti, “Generalized graph saturation”, 2021 KMS Spring Meeting (April 29-30), Online, Korea.
April 29, 2021: Minki Kim (김민기), “A system of disjoint representatives of line segments”, 2021 KMS Spring Meeting (April 29-30), Online, Korea.
April 29, 2021: O-joung Kwon (권오정), “Measuring what matters: a hybrid approach to dynamic programming with tree-width”, 2021 KMS Spring Meeting (April 29-30), Online, Korea.
April 29, 2021: Jungho Ahn (안정호), “Well-partitioned chordal graphs: obstruction set and applications”, 2021 KMS Spring Meeting (April 29-30), Online, Korea.
April 28, 2021: Dabeen Lee (이다빈), “Data-driven chance-constrained optimization under Wasserstein ambiguity”, ISysE seminar, KAIST, Daejeon, Korea.
April 27, 2021: Jungho Ahn (안정호), “Well-partitioned chordal graphs with the obstruction set and applications”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
April 20, 2021: Dabeen Lee (이다빈), “Data-driven chance-constrained optimization under Wasserstein ambiguity”, Rookies Pitch (서울대학교 수리과학부 신진연구자 연구발표회), Department of Mathematical Sciences, Seoul National University, Seoul, Korea.
April 20, 2021: Sang-il Oum (엄상일), “What is an isotropic system?”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
April 13, 2021: William Overman, “Some Ordered Ramsey Numbers of Graphs on Four Vertices”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
April 9, 2021: Sang-il Oum (엄상일), “A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Bordeaux Graph Seminar, LaBRI, Bordeaux, France.
April 6, 2021: Rutger Campbell, “Matroid orientability and representability”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 30, 2021: Casey Tompkins, “3-uniform hypergraphs avoiding a cycle of length four”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 9, 2021: Debsoumya Chakraborti, “Some classical problems in graph saturation”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 2, 2021: Kevin Hendrey, “A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 1, 2021: O-joung Kwon (권오정), “A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups”, Graphs and Matroids, Matroid Union, Online.
February 23, 2021: Minki Kim (김민기), “Rainbow paths and rainbow matchings”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
January 26, 2021: Tuan Tran, “Minimum saturated families of sets”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
January 20, 2021: Dabeen Lee (이다빈), “Data-driven optimization: test score algorithms and distributionally robust approach”, Special Seminar, Department of Applied Mathematics & Statistics, Johns Hopkins University, Baltimore, USA.
January 19, 2021: Ben Lund, “Perfect matchings and derangements on graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
January 5, 2021: O-joung Kwon (권오정), “Directed tangles and applications”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
2020
December 22, 2020: Jinha Kim (김진하), “On a conjecture by Kalai and Meshulam – the Betti number of the independence complex of ternary graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
December 9, 2020: Tuan Tran, “A glimpse of Littlewood-Offord theory”, AMSS Lecture, Online, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China.
December 1, 2020: Debsoumya Chakraborti, “Rainbow matchings in edge-colored simple graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
November 24, 2020: Kevin Hendrey, “Obstructions to bounded branch-depth in matroids”, CMSA seminar, Online, Combinatorial Mathematics Society of Australasia.
November 24, 2020: Duksang Lee (이덕상), “Characterizing matroids whose bases form graphic delta-matroids”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
October 27, 2020: Jeong Ok Choi (최정옥), “Various game-theoretic models on graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
October 23, 2020: Ben Lund, “The finite field Kakeya problem”, CS Colloquium, SUNY Korea, Incheon, Korea.
October 23, 2020: O-joung Kwon (권오정), “Half-integral Erdős–Pósa property of directed odd cycles”, 2020 KMS Annual Meeting (October 23-24), Online, Korea.
October 23, 2020: Jungho Ahn (안정호), “A polynomial kernel for 3-leaf power deletion”, 2020 KMS Annual Meeting (October 23-24), Online, Korea.
October 23, 2020: J. Pascal Gollin, “Disjoint dijoins for classes of dicuts in finite and infinite digraphs”, 2020 KMS Annual Meeting (October 23-24), Online, Korea.
October 23, 2020: Minki Kim (김민기), “Topological colorful Helly for rainbow independent sets”, 2020 KMS Annual Meeting (October 23-24), Online, Korea.
October 23, 2020: Jinha Kim (김진하), “Rainbow paths and rainbow matchings in graphs”, 2020 KMS Annual Meeting (October 23-24), Online, Korea.
October 23, 2020: Duksang Lee (이덕상), “Characterizing matroids whose bases form graphic delta-matroids”, 2020 KMS Annual Meeting (October 23-24), Online, Korea.
October 16, 2020: Dabeen Lee (이다빈), “Test score based algorithms for budgeted stochastic submodular maximization”, CS Colloquium, SUNY Korea, Incheon, Korea.
September 29, 2020: Minki Kim (김민기), “Complexes of graphs with bounded independence number”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
September 22, 2020: Jinha Kim (김진하), “Collapsibility of Non-Cover Complexes of Graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
September 15, 2020: Debsoumya Chakraborti, “Maximum number of cliques in a graph with bounded maximum degree”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
September 8, 2020: Rutger Campbell, “Disasters in abstracting combinatorial properties of linear dependence”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 27, 2020: Kevin Hendrey, “Counting cliques in 1-planar graphs”, SCMS Combinatorics Seminar, Shanghai Center for Mathematical Sciences, Shanghai, China.
August 26, 2020: Tuan Tran, “Singularity of random combinatorial matrices”, CMSA seminar, Combinatorial Mathematics Society of Australasia, Australia.
August 25, 2020: Ben Lund, “Point-plane incidence bounds”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 24, 2020: Tuan Tran, “The singularity of random combinatorial matrices”, 2020 Combinatorics Workshop, Online, Korea.
August 18, 2020: Tuan Tran, “Anti-concentration phenomena”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 11, 2020: Yunbum Kook (국윤범), “Vertex Sparsification for Edge Connectivity”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
July 20, 2020: J. Pascal Gollin, “Obstructions for bounded branch-depth in matroids”, Graphs and Matroids, Matroid Union, Online.
July 14, 2020: Casey Tompkins, “Inverse Turán Problems”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
July 10, 2020: Dabeen Lee (이다빈), “Distributionally robust chance-constrained programs under Wasserstein ambiguity”, IME Special Seminar, POSTECH, Pohang, Korea.
May 19, 2020: O-joung Kwon (권오정), “Mim-width: a width parameter beyond rank-width”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
May 14, 2020: Casey Tompkins, “Saturation problems in the Ramsey theory of graphs, posets and point sets”, Extremal Sets seminar, Alfréd Rényi Institute of Mathematics, Budapest, Hungary.
April 21, 2020: Sang-il Oum (엄상일), “Survey on vertex-minors”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
April 14, 2020: Casey Tompkins, “Saturation problems in the Ramsey theory of graphs, posets and point sets”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
April 7, 2020: J. Pascal Gollin, “Disjoint dijoins for classes of dibonds in finite and infinite digraphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 24, 2020: Kevin Hendrey, “Covering radius in the Hamming permutation space”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
March 19, 2020: Sang-il Oum (엄상일), “3-degenerate induced subgraph of a planar graph”, New Perspectives in Colouring and Structure (March 15-20), Banff International Research Station (BIRS), Banff, Canada.
March 17, 2020: Dabeen Lee (이다빈), “On a generalization of the Chvátal-Gomory closure”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
February 18, 2020: Dong Yeap Kang (강동엽), “Fragile minor-monotone parameters under random edge perturbation”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
January 4, 2020: Abhishek Methuku, “Bipartite Turán problems for ordered graphs”, 2020 One day Meeting on Extremal Combinatorics (January 4, 2020), Ewha Womans University, Seoul, Korea.
2019
December 20, 2019: Dabeen Lee (이다빈), “Linear programs with probabilistic constraints and binary mixing sets”, Frontiers in Industrial & Systems Engineering, 2019 Winter ISysE Symposium, KAIST, Daejeon, Korea.
October 29, 2019: J. Pascal Gollin, “A Cantor-Bernstein-type theorem for spanning trees in infinite graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
October 27, 2019: Sang-il Oum (엄상일), “The Erdős-Hajnal property for graphs with no fixed cycle as a pivot-minor”, 2019 KMS Annual Meeting (October 25-27), Hongik University, Seoul, Korea.
October 20, 2019: Dabeen Lee (이다빈), “On some polytopes contained in the 0,1 hypercube that have a small Chvatal rank”, 2019 INFORMS Annual Meeting (October 20-23), Seattle, USA.
October 20, 2019: Dabeen Lee (이다빈), “Joint chance-constrained programs and intersection of mixing sets through a submodularity lens”, 2019 INFORMS Annual Meeting (October 20-23), Seattle, USA.
October 1, 2019: Casey Tompkins, “Extremal problems for Berge hypergraphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
September 10, 2019: Kevin Hendrey, “The minimum connectivity forcing forest minors in large graphs”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
August 14, 2019: Dong Yeap Kang (강동엽), “Recent advances in degenerate Turán-type problems”, 2019 Combinatorics Workshop (August 13-15), Songdo, Incheon, Korea.
August 13, 2019: Dabeen Lee (이다빈), “On the Chvatal rank for integer programming”, 2019 Combinatorics Workshop (August 13-15), Hotel Skypark, Incheon, Korea.
July 16, 2019: Dabeen Lee (이다빈), “Integrality of set covering polyhedra and clutter minors”, Discrete Math Seminar, IBS Discrete Mathematics Group, Daejeon, Korea.
July 4, 2019: Sang-il Oum (엄상일), “The Erdős-Hajnal property for graphs with no fixed cycle as a pivot-minor”, Graph Colouring: from Structure to Algorithms (June 30-July 5), Dagstuhl Workshop, Dagstuhl, Germany.
May 28, 2019: Sang-il Oum (엄상일), “The Erdős-Hajnal property for graphs with no fixed cycle as a pivot-minor”, Mini-symposium “structural graph theory”, CanaDAM 2019 (May 28-31), Simon Fraser University, Vancouver, Canada.
May 1, 2019: Sang-il Oum (엄상일), “Branch-depth: Generalizing tree-depth of graphs”, Structural Graph Theory and Graph Coloring (April 29-May 3), Tsinghua Sanya International Mathematics Forum, Sanya, China.
April 20, 2019: Sang-il Oum (엄상일), “How to decompose a graph into a tree-like structure”, Plenary Lecture, 2019 KMS Spring Meeting (April 19-20), Kangwon National University, Chuncheon, Korea.
April 16, 2019: Sang-il Oum (엄상일), “How to decompose a graph into a tree-like structure”, PCS Seminar, Center for Theoretical Physics of Complex Systems, Institute for Basic Science, Daejeon, Korea.
March 31, 2019: Sang-il Oum (엄상일), “Branch-depth: Generalizing tree-depth of graphs”, 2019 Spring Jinhua Workshop on Graph Theory, Zhejiang Normal University, Jinhua, China.
March 28, 2019: Sang-il Oum (엄상일), “4색정리 이야기”, Colloquium, GIST College, GIST, Gwangju, Korea.
February 21, 2019: Sang-il Oum (엄상일), “Classes of graphs with no long cycle as a vertex-minor are polynomially 𝜒-bounded”, Taipei International Workshop on Combinatorics and Graph Theory (February 20-23), Institute of Mathematics, Academia Sinica, Taipei, China.
February 11, 2019: Dong Yeap Kang (강동엽), “On the rational Turán exponents conjecture”, 2019-1 IBS Workshop on Graph Theory (February 11-12, 2019), IBS, Daejeon, Korea.
2018
December 22, 2018: Dong Yeap Kang (강동엽), “Some extremal results on highly connected tournament-like digraphs”, 22nd KIAS Combinatorics Workshop (December 19-22, 2018), Shilla Stay, Busan, Korea.
December 1, 2018: Sang-il Oum (엄상일), “Classes of graphs with no long cycle as a vertex-minor are polynomially 𝜒-bounded”, 2018 SCMS Workshop on Extremal and Structural Graph Theory (November 30-December 2), Shanghai Center for Mathematical Sciences, Fudan University, Shanghai, China.