EVENTI
Lunedì 7 ottobre alle ore 14..30 il Prof. Ken Smith, retired, formerly of Sam Houston State University & Central Michigan University, USA, ospite presso il Dipartimento di Matematica e Fisica 'E. De Giorgi' terrà un seminario online dal titolo
Genuinely Nonabelian Partial Difference Sets
All combinatorial objects possess a group of symmetries and so research into combinatorial structures often uses tools from group theory. Historically these tools have focused on abelian groups, where the symmetries commute and the analysis of the group is relatively simple. Powerful tools in character theory (for example) have been used to discover objects with commuting symmetries. But the convenient tools of abelian groups are inadequate if the group of symmetries is nonabelian, that is, if some symmetries do not commute. In this talk we explore strongly regular graphs where the approach of abelian groups fails and other techniques are required.
This work includes research with professors James A. Davis, John Polhill and Eric Swartz. A paper related to this talk is here: https://onlinelibrary.
Link del seminario: https://meet.
Ref. Prof. Alessandro Montinaro