2018-03-12 10:00-11:00 FAMNIT-POŠTA Emanuele Perazzolo (University of Verona, Italy) (n + 1)-coloured graphs: a combinatorial representation for PL n-manifolds This thesis would like to extend some concepts of an existing representation theory for closed PL manifolds, called Crystallization Theory. This…
2018-03-05 10:00-11:00 FAMNIT-POŠTA Klavdija Kutnar (University of Primorska) The beauty of cubic symmetric graphs In this talk the properties of cubic symmetric graphs will be described. Special emphases will be given to a recent characterization of these graphs via the so-called…
2018-02-28 16:00 — 18:30 Muzejski 1 Liliana Alcón (Universidad Nacional de La Plata, Argentina) Mini-course The course is an introduction to the Polya’s theory in order to answerquestions such as:-Up to isomorphism, how many graphs on n vertices are there?-Up…
2018-02-26 10:00-11:00 FAMNIT-POŠTA István Estélyi (University of West Bohemia, Czech Republic) Cubic bi-Cayley graphs over solvable groups are 3-edge-colorable (Joint work with Roman Nedela) Bi-Cayley graphs are graphs admitting a semiregular group of automorphisms with two orbits. A notable cubic…
2018-02-19 10:00-11:00 FAMNIT-POŠTA Ademir Hujdurović (UP IAM, UP FAMNIT) Odd automorphisms in graphs An automorphism of a graph is said to be even/odd if it acts on the vertex set of the graph as an even/odd permutation. In this talk,…
2018-01-31 10:00-11:00 FAMNIT-POŠTA Monica Milasi (University of Messina) Generalized convexity and applications. The aim of this talk is to consider the quasiconvex and pseudoconvex functions. One of the reasons for the study of generalized convexity is that convexity usually is…
2018-01-24 11:00-12:30 FAMNIT-Muzejski1 Mikhail E. Muzychuk (Ben-Gurion University of the Negev, Israel) Coherent configurations In my lectures I'll talk about coherent configurations, association schemes and their connection to combinatorics and finite geometry. We also learn how coherent configurations are related…
2018-01-22 10:00-11:00 FAMNIT-POŠTA Alejandra Ramos (UP IAM & UP FAMNIT) Structural results on vertex- and edge-transitive graphs In this talk we present the main topics, research questions and the expected results of the proposed PhD thesis. The central theme of…
2018-01-15 10:00-11:00 FAMNIT-POŠTA Bojan Kuzma (UP FAMNIT) Commuting graphs — Isometry transfer problems, realizability questions, property recognition, and homomorphisms The essence of commutativity relation on a given Magma is captured in its commuting graph which, by definition, is a simple…
2018-01-08 10:00-11:00 FAMNIT-POŠTA Irena Penev (University of Leeds, United Kingdom) Isolating highly connected induced subgraphs Mader (1972) proved that every graph of average degree at least 4k contains a (k+1)-connected subgraph, and Alon, Kleitman, Saks, Seymour, and Thomassen (1987) proved…