Michał Seweryn, Dimension and standard examples in planar posets
Room B332 IBS (기초과학연구원)The dimension of a poset is the least integer
10 events found.
Seminars and Colloquiums
Hyunwoo Lee (이현우), Reconstructing hypergraph matching polynomials
Room B332 IBS (기초과학연구원)By utilizing the recently developed hypergraph analogue of Godsil's identity by the second author, we prove that for all
Marcelo Garlet Milani, Cycles of Well-Linked Sets and an Elementary Bound for the Directed Grid Theorem
Room B332 IBS (기초과학연구원)In 2015, Kawarabayashi and Kreutzer proved the directed grid theorem. The theorem states the existence of a function f such that every digraph of directed tree-width f(k) contains a cylindrical …
Daniel McGinnis, A necessary and sufficient condition for
Room B332
IBS (기초과학연구원)
We solve a long-standing open problem posed by Goodman and Pollack in 1988 by establishing a necessary and sufficient condition for a finite family of convex sets in
Nicola Lorenz, A Minor Characterisation of Normally Spanned Sets of Vertices
Room B332 IBS (기초과학연구원)A rooted spanning tree of a graph
Marcin Briański, Burling Graphs as (almost) universal obstacles to
Room B332
IBS (기초과학연구원)
What causes a graph to have high chromatic number? One obvious reason is containing a large clique (a set of pairwise adjacent vertices). This naturally leads to investigation of
Pascal Schweitzer, Recent insights surrounding combinatorial approaches to isomorphism and symmetry problems
Room B332 IBS (기초과학연구원)Modern practical software libraries that are designed for isomorphism tests and symmetry computation rely on combinatorial techniques combined with techniques from algorithmic group theory. The Weisfeiler-Leman algorithm is such a …
Eunjin Oh (오은진), Approximation Algorithms for the Geometric Multimatching Problem
Room B332 IBS (기초과학연구원)Let S and T be two sets of points in a metric space with a total of n points. Each point in S and T has an associated value that specifies an upper limit on how many points it can …
Seokbeom Kim (김석범), The structure of △(1, 2, 2)-free tournaments
Room B332 IBS (기초과학연구원)Given a tournament