2021-03-01 10:00 — 11:00 Zoom Safet Penjić (UP FAMNIT and UP IAM, Slovenia) On a certain families of a symmetric association schemes with d+1 classes Let Γ denote an undirected, connected, regular graph with vertex set X, adjacency matrix A,…
2021-02-22 10:00 — 11:00 Zoom (See link below) Luke Morgan (UP FAMNIT) Shuffling cards with groups There are two standard ways to shuffle a deck of cards, the in and out shuffles. For the in shuffle, divide the deck into…
2021-02-15 15:00 — 16:00 ZOOM (See link below) Francesca Scarabel (York University, Canada) A renewal equation model for disease transmission dynamics with contact tracing I will present a deterministic model for disease transmission dynamics including diagnosis of symptomatic individuals and contact…
2021-01-11 10:00 — 11:00 ZOOM (See link below) Petr Golovach (Bergen University, Norway) Paths and Cycles Above Combinatorial Bounds An undirected graph G d-degenerate if every subgraph of G has a vertex of degree at most d, and the degeneracy…
2021-01-04 10:00 — 11:00 ZOOM (See link below) Ted Dobson (UP FAMNIT, Slovenia) Recognizing vertex-transitive digraphs which are wreath products, double coset digraphs, and generalized wreath products It is known that a Cayley digraph $\Cay(A,S)$ of an abelian group $A$…
2020-12-21 10:00 — 11:00 ZOOM (See link below) Daniel Paulusma (Durham University, UK) Contracting to a Longest Path in H-Free Graphs We consider the problem of determining if a graph can be modified to a path by a small number…
2020-12-14 10:00 — 11:00 ZOOM (See link below) Alexander Lazar (KTH Royal Institute of Technology, Sweden) Partition and Cohen-Macaulay Extenders The f- and h-vectors of a simplicial complex are two important combinatorial invariants whose study has motivated a great deal…
2020-12-07 10:00 — 11:00 ZOOM (See link below) Michael Giudici (The University of Western Australia, Australia) Bases for permutation groups and the Saxl graph Let $G$ be a permutation group on a set $\Omega$. A base for $G$, is a…
2020-11-30 11:00 — 12:00 ZOOM (See link below) Enes Pasalic (UP FAMNIT) Boolean functions and their applications in cryptography This talk will cover certain applications of Boolean functions in cryptography and related research fields in this context. I will briefly…
2020-11-30 10:00 — 11:00 ZOOM (See link below) Sadmir Kudin (UP FAMNIT-IAM, Slovenia) An Analysis of the C class of Bent Functions In early nineties C.Carlet introduced two new classes of bent functions, both derived from the Maiorana-McFarland (MM) class,…