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A walk through primitive, quasiprimitive and semiprimitive groups: from a conjecture of Weiss to a conjecture of Babai-Seress

Venerdi' 8 Luglio 2011 - Pablo Spiga

ARGOMENTI: Seminari

Venerdi' 8 Luglio 2011 alle ore 12.00 in aula 2AB45 il dott. Pablo Spiga (Milano Bicocca e Western Australia) terra' una conferenza dal titolo "A walk through primitive, quasiprimitive and semiprimitive groups: from a conjecture of Weiss to a conjecture of Babai-Seress".

-Abstract
In this talk we present some recent results (and a conjecture) on the subdegrees of a finite primitive permutation group. Some of the tools used in this area come from algebraic graph theory and these lead us to introduce a conjecture of Richard Weiss. We present the main ingredients of the recent solution of the Weiss conjecture for groups of bounded Lie rank and we show how these ingredients also apply to a conjecture of Babai and Seress.

Rif. int. F. Menegazzo

NEWS: Sciopero dei docenti e svolgimento degli esami - L'eventuale astensione riguardera' il primo appello d'esame programmato nel periodo 28 agosto - 31 ottobre 2017. X