HHU Düsseldorf - Mathematisches Institut - Advanced Seminar on Group Theory

The seminar continues non-digitally at a new time and place:

Time/Date:

We meet weekly on Tuesday 9:30 - 11:00 in Lecture Hall 5E.

For details see schedule below.

Content:

Advanced topics in group theory are discussed in short series of talks and guest lectures.

Organizers:

Prof. Dr. Benjamin Klopsch, Moritz Petschick

Talks

Topic: Exercises collected by J.D. Dixon / Free choice of topics
Date	Speaker	Title
Tuesday 05.05.20 online!	Moritz Petschick	There are no simple groups of order 300, 400 and 540 (= Problem 7.16)
Tuesday 12.05.20 online!	Benjamin Klopsch	Frobenius' Theorem (vintage 1901)
Tuesday 19.05.20 online!	Karthika Rajeev	On a conjecture arising from a theorem of Frobenius
Tuesday 26.05.20 online!	Zeynep Kisakürek	A couple of words on irreducible characters around Exc. 11.30
Tuesday 02.06.20 online!	Djurre Tijsma	On the simple groups PSL₂(k)
Tuesday 09.06.20 at 16:00 online!	Luis Mendonca	BNS invariants, wreath products and related topics
Thursday 18.06.20 Lecture Hall 5E	Benjamin Klopsch	Strong conciseness in profinite groups
Thursday 25.06.20 Lecture Hall 5E	Pablo Cubides	An introduction to ultraproducts for group theorists and related topics -- Part I
Thursday 02.07.20 Lecture Hall 5E	Pablo Cubides	An introduction to ultraproducts for group theorists and related topics -- Part II
Thursday 09.07.20 Lecture Hall 5E	Benjamin Klopsch	Powerful p-groups
Thursday 16.07.20 Lecture Hall 5E	Margherita Piccolo	The generating graph of a profinite group
Tuesday 21.07.20 Lecture Hall 5E	Moritz Petschick	Building finitely generated infinite torsion groups
Tuesday 28.07.20 Lecture Hall 5E	Moritz Petschick	Forms of the Magnus Property
Tuesday 04.08.20 Lecture Hall 5E	Martina Conte	The Bruhat-Tits tree of SL₂ and Ihara's theorem
Summer break
Tuesday 08.09.20 Lecture Hall 5E	Benjamin Klopsch	Hausdorff dimension of closed subsets in profinite groups
Tuesday 15.09.20 Lecture Hall 5E 9.30 - 12.00 (two 1h talks)	Djurre Tijsma Damiano Rossi (BUW)	Automata and finite order elements in the Nottingham group (abstr.) Character triple conjecture for p-solvable groups (abstr.)
Tuesday 22.09.20 Lecture Hall 5E	Carsten Feldkamp	Groups with finitely many conjugacy classes and their automorphism
Tuesday 29.09.20 Lecture Hall 5E	Mima Stanojkovski (Bielefeld / MPI Leipzig)	(Strong) isomorphism of p-groups and orbit counting ( abstr. )
		The strong isomorphism classes of extensions of finite groups are parametrized by orbits of a prescribed action on the second cohomology group. We will look at these orbits in the case of extensions of a finite abelian p-group by a cyclic factor of order p. As an application, we will compute number and sizes of these orbits when the initial p-group is generated by at most 3 elements. This is joint work with Oihana Garaialde Ocaña.
Tuesday 06.10.20 Lecture Hall 5E	Max Lindh	Dixon's Restricted Character Algorithm
Tuesday 13.10.20 Lecture Hall 5E	Karthika Rajeev	Representations of Gupta–Sidki p-groups

Advanced Seminar on Group Theory

Sommersemester 2020

Talks

Archive