Tuan Tran, Minimum saturated families of sets
Room B232 IBS (기초과학연구원)A family
10 events found.
Discrete Math Seminar
Doowon Koh (고두원), On the cone restriction conjecture in four dimensions and applications in incidence geometry
Room B232 IBS (기초과학연구원)Main purpose of this talk is to introduce a connection between restriction estimates for cones and point-sphere incidence theorems in the finite field setting. First, we review the finite field …
Martin Ziegler, Quantitative Coding and Complexity Theory of Continuous Data
Room B232 IBS (기초과학연구원)Specifying a computational problem requires fixing encodings for input and output: encoding graphs as adjacency matrices, characters as integers, integers as bit strings, and vice versa. For such discrete data, the actual encoding …
Minki Kim (김민기), Rainbow paths and rainbow matchings
Room B232 IBS (기초과학연구원)We prove that if
Kevin Hendrey, A unified half-integral Erdős-Pósa theorem for cycles in graphs labelled by multiple abelian groups
Room B232 IBS (기초과학연구원)Erdős and Pósa proved in 1965 that there is a duality between the maximum size of a packing of cycles and the minimum size of a vertex set hitting all …
Debsoumya Chakraborti, Some classical problems in graph saturation
Room B232 IBS (기초과학연구원)Graph saturation is one of the oldest areas of investigation in extremal combinatorics. A graph
Se-Young Yun (윤세영), Regret in Online Recommendation Systems
Room B232 IBS (기초과학연구원)We propose a theoretical analysis of recommendation systems in an online setting, where items are sequentially recommended to users over time. In each round, a user, randomly picked from a …
Hong Liu (刘鸿), Nested cycles with no geometric crossing
Room B232 IBS (기초과학연구원)In 1975, Erdős asked the following question: what is the smallest function
Casey Tompkins, 3-uniform hypergraphs avoiding a cycle of length four
Room B232 IBS (기초과학연구원)We show that that the maximum number of of edges in a
Rutger Campbell, Matroid orientability and representability
Room B232 IBS (기초과학연구원)In this talk we will have a brief introduction to oriented matroids and their relation to real-representability.