Januar 2014 – November 2017

Jan
22
Mi
Andreas Thom (Leipzig): About the work of Marcus-Spielman-Srivastava on interlacing families and the Kadison-Singer problem I
Jan 22 @ 13:30 – 14:30

Vortrag im Rahmen des Seminars “Algebra und Geometrie”

Fragestunde mit Joan Verdera (Barcelona)
Jan 22 @ 15:00 – 15:45

Fragestunde für Doktoranden und Postdoktoranden.

Joan Verdera (Barcelona): tba
Jan 22 @ 16:30 – 17:30

Vortrag im Kolloquium des Felix-Klein-Collegs

Jan
29
Mi
Andreas Thom (Leipzig): About the work of Marcus-Spielman-Srivastava on interlacing families and the Kadison-Singer problem II
Jan 29 @ 13:30 – 14:30

Vortrag im Rahmen des Seminars “Algebra und Geometrie”

Apr
23
Mi
Andreas Thom (Leipzig): Divisibility and laws for finite simple groups
Apr 23 @ 13:30 – 14:30

Vortrag im Rahmen des Seminars “Algebra und Geometrie”

Abstract: We provide new bounds for the divisibility function of the free group F_2 and construct short laws for the symmetric groups Sym(n). We also give bounds on the length of laws for finite simple groups of Lie type. This is joint work with Gady Kozma.

Mai
14
Mi
Pinaki Mondal (Weizmann Institute): A calculus to determine algebraicity of surfaces
Mai 14 @ 13:00 – 14:00

Vortrag im Rahmen des Seminars “Algebra und Geometrie”

Abstract: It is a classical problem of complex analytic geometry to determine when a given analytic space has an algebraic structure. For nonsingular surfaces the solution is given by the Enriques-Kodaira classification. For singular surfaces, however we only have some sufficiency results (due to Grauert, Artin, Brenton and others) and the general picture is not clear.

In this talk we present a new (and effective) algebraicity criterion for a class of surfaces containing the complex plane (C^2). We will also talk about some applications, in particular, a joint work with Tim Netzer on the classical “moment problem”, which asks, given a closed subset S of R^n, for characterization of linear functionals on the ring of polynomials(over R) which arise from integration on S with respect to some (Borel) measure on S. If time permits, we will also talk about how the criterion leads to the solution of a special case of the Abhyankar-Sathaye conjecture on embeddings of C^2 in C^3.

Mai
28
Mi
Christiane Zyrus (Leipzig): Fricke polynomials and traces of words
Mai 28 @ 13:30 – 14:30

Vortrag im Rahmen des Seminars “Algebra und Geometrie”

Jun
11
Mi
Uwe Franz (Besancon/Greifswald): Levy-Prozesse auf Gruppen, Quantengruppen und dualen Gruppen
Jun 11 @ 13:30 – 14:30

Vortrag im Rahmen des Seminars “Algebra und Geometrie”

Nov
24
Fr
Klaus Kroy, (Universität Leipzig): to be announced
Nov 24 @ 11:00 – 12:30

Vortrag in der Reihe: Arbeitsgemeinschaft ANGEWANDTE ANALYSIS

Nov
27
Mo
Fabio Bonsignorio, (Scuola Superiore Sant’Anna, Pisa, Italy): Modeling of Networked Embodied Cognitive Processes
Nov 27 @ 14:00 – 15:30
Letzte Änderung: 15. Mai 2013