Predavanje: WHERE GROUPS = GRAPHS = TOPOLOGY
lokacija:
PMF Split, B3-17
vrijeme:
11.03.2022 - 12:00 - 13:00 U organizaciji znanstvenog razreda Splitskog matematičkog društva
prof. Mathew Timm
Bradley University i PMF Split
će održati predavanje pod naslovom:
WHERE GROUPS = GRAPHS = TOPOLOGY
Sažetak:
A group is non-Hopfian if it has proper quotients which are isomorphic to itself. The Baumslag-Solitar groups [Baumslag, G., Solitar, D., 1962] were the first known examples of 2 generator, 1 relator non-Hopfian groups. They, and the broader class of generalized Baumslag-Solitar (GBS) groups, have since become test beds for various sorts of conjectures in group theory. The class of GBS groups is intimately connected to a class of graphs, the GBS graphs, and a class of topological spaces, the GBS complexes. We explore those connections and, we hope, provide a justification for the title chosen for this talk.