Jaehoon Kim (김재훈) gave a talk on a sufficient condition for a 2-complex to have a unique embedding in a 3-dimensional space, which is a 3-dimensional analog of Whitney’s theorem on the uniqueness of planar embeddings of a 3-connected graph at the Discrete Math Seminar

On November 9, 2021, Jaehoon Kim (김재훈) from KAIST gave a talk at the Discrete Math Seminar on a 3-dimensional analog of Whitney’s theorem on the uniqueness of planar embeddings of a 3-connected graph. The title of his talk was “2-complexes with unique embeddings in 3-space“.

Martin Milanič gave an online talk on a variation of tree-width of graphs by measuring the width of a tree-decomposition by the size of the largest stable set in a bag at the Virtual Discrete Math Colloquium

On November 5, 2021, Martin Milanič from the University of Primorska, Slovenia gave an online talk at the Virtual Discrete Math Colloquium on a variation of tree-width by measuring the width of a tree-decomposition by the size of the largest stable set in a bag and its algorithmic applications to the maximum weight stable set. The title of his talk was “Tree Decompositions with Bounded Independence Number“.

Péter Pál Pach gave an online talk on the solution of the Alon-Jaeger-Tarsi conjecture at the Virtual Discrete Math Colloquium

On September 30, 2021, Péter Pál Pach from the Budapest University of Technology and Economics gave an online talk at the Virtual Discrete Math Colloquium on the solution of the Alon-Jaeger-Tarsi conjecture for all finite fields of size more than 61 but not equal to 79. The title of his talk was “The Alon-Jaeger-Tarsi conjecture via group ring identities“.

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