[Vortraege] Vortragsankündigungen der komm. Woche (KW5)

Fri Jan 23 13:25:09 CET 2009

Sehr geehrte Fakultätsmitglieder,

anbei die Vortragsankündigungen für die nächste Woche, im Anhang finden 
Sie den Text auch als PDF Datei.

Mittwoch, 28. Januar, 15:00 Uhr bis 15:45 Uhr , C 209, UZA 4
Einführung zum Mathematischen Kolloquium
Prof. Dr. Guy Henniart (Université Paris-Sud XI - Orsay)
„An introduction to modular Langlands correspondences“
Abstract: In the Junior Colloquium an introduction to the theme of the 
Mathematical Colloquium following after the Junior Colloquium will be 
given. Some background will be provided for the untrained but interested 
attendent of the Mathematical Colloquium, in which the speaker will talk 
about the quest for modular Langlands correspondences. The Langlands 
Program is one of the most ambitious goals of arithmetic algebraic 
geometry as it predicts unexpected connections between apparently 
different theories.

15:45 Uhr bis 16:15 Uhr: K & K im Common Room

Mittwoch, 28. Januar, 16:15 Uhr bis 17:00 Uhr, C 209, UZA 4
Mathematisches Kolloquium
Prof. Dr. Guy Henniart (Université Paris-Sud XI - Orsay)
„The quest for modular Langlands correspondences“
Abstract: Congruences of modular forms have played an important rôle 
recently,   for example in the proof of Fermat's last Theorem. Viewing 
modular forms as automorphic representations, i.e. representations of 
adele groups,   leads inexorably to studying representations of 
reductive p-adic   groups on vector spaces over finite fields, 
especially Z/pZ. It then   becomes natural to look for a modular 
Langlands correspondence for   such representations, relating them to 
representations of Galois   groups on vector spaces over the same 
fields. The investigations have   just started: the only group attacked 
seriously is GL(2), and reasonably complete results are available only 
in the case of GL(2)   over the field of p-adic numbers (Colmez). After 
introducing briefly this chain of thought, I shall concentrate on the 
case of GL(2), describing the framework, some hopes and some results.

(Dekan Univ.-Prof. Dr. Harald Rindler, V.-Prof. Dr. Herwig Hauser, 
Vizedekan Univ.-Prof. Dr. Christian Krattenthaler, Univ.-Prof. Dr. 
Joachim Schwermer)

Montag, 26. Januar, ab 11:00 Uhr bis Freitag, 30. Januar, ESI 
Schrödinger Lecture Hall, Boltzmanngasse 9, 1090 Wien
ESI-Workshop Representation Theory of Reductive Groups-Local and Global 
Aspects
Organizers: Guy Henniart, Goran Muic, Joachim Schwermer
Programm: Attachment anbei!

Dienstag, 27. Januar, 11:15 Uhr bis 12:45 Uhr, D 104, UZA 4
Complex Analysis Seminar
Dr. Michał Jasiczak (Adam Mickiewicz University)
„Interpolation on finite type domains“
Abstract: During the talk we intend to study interpolation problems 
for holomorphic functions on finite type domains in Cn. More 
specifically, let D be either a smoothly bounded convex domain of finite 
type in Cn or a finite type bounded domain in Cn and let A be a 
non-singular holomorphic subvariety of some neighbourhood of D, which 
cuts bD transversally.We will address the question, when a function f, 
which is holomorphic in A∩D, extends to a holomorphic function on the 
whole domain D. It is a consequence of Cartan's Theorem B and Oka's 
Coherence Theorem that if D is pseudoconvex then each function in H(A∩D) 
is the restriction of a function, which is holomorphic in D. The same 
problem is more involved if we impose growth restrictions on the 
corresponding functions and their extensions. Our plan is to present in 
detail necessary conditions for interpolation on finite type domains in 
C2 for the Bergman and the Hardy scale of spaces. We will show how these 
conditions can be formulated for convex finite type domains in Cn and 
when they are sufficient. However, in order to make the lecture 
accessible, we will start with the simplest possible case, namely, the 
unit ball in Cn.

Dienstag, 27. Januar, 15:00 Uhr, D 103, UZA 4
Arbeitsgemeinschaft Biomathematik
Stefano de Michelis (Pavia)   

Dienstag, 27. Januar, 15:15 Uhr bis 16:45 Uhr, TU Wien, Institut für 
Diskrete Mathematik und Geometrie, Freihaus, grüner Turm (A), 8. Stock, 
Dissertantenraum, Wiedner Hauptstraße 8-10, 1040 Wien
Arbeitsgemeinschaft Diskrete Mathematik
Christoph Koutschan (RISC, Linz)
„Two applications of automated holonomic function manipulation: 
simulation of electromagnetic waves and counting lattice paths“

Donnerstag, 29. Januar, 15:00 Uhr, TU, Freihaus, grüner Turm, 3. Stock, 
Seminarraum 101B, Wiedner Hauptstraße 8, 1040 Wien
WK student seminar
Sara Karlsson
„Modeling of the volatility surface using Heston“
Abstract: A presentation of one of the most common Stochastic volatility 
models, some shortfalls when implementing it and its implied volatility 
surface.

Donnerstag, 29. Januar, 15:00 Uhr, TU, Freihaus, grüner Turm, 3. Stock, 
Seminarraum 101B, Wiedner Hauptstraße 8, 1040 Wien
WK student seminar
Samuel Ferraz-Leite
„Functional analytic framework for a reduced model in thin-film 
micromagnetics“

Donnerstag, 29. Januar, 15:30 Uhr, 2A310, UZA 2
Geometry Seminar
Bernhard Krötz (MPI Bonn)
„Convexity theorems in complex geometry“
Abstract: The Schur-Horn convexity theorems relates the eigenvalues of a 
positive definite Hermitian matrix to the diagonal entries in its Gauss 
decomposition. This result was extended by Kostant to the context of 
semi-simple Lie groups and was further generalized by 
Atiyah-Guillemin-Sternberg in their celebrated convexity theorem. We 
will explain an analogous result for certain complex symmetric matrices. 
In addition we will discuss convexity features of a complexified polar 
decomposition of an invertible matrix. The work presented is partly 
joined with S.Gindikin and Michael Otto. On the technical side we 
slightly improve and extends results of Kostant, Heckmann, Atiyah, 
Guillemin-Sternberg, Duistermaat and Harish-Chandra.

Freitag, 30. Januar, 12:15 Uhr, TU Wien, Institut für Diskrete 
Mathematik und Geometrie, Turm A, 5. Stock, kleiner Seminarraum 104, 
Wiedner Hauptstraße 8-10, 1040 Wien
WAS Wiener Algebra Seminar
Alexander E. Zalesskii (Universita di Milano, Bicocca)
„Classification of simple Hurwitz groups and representations of the (2, 
3, 7)-triangle group“

Mit freundlichen Grüßen

Margit Honkisz
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