Uniformity functions in descriptive set theory
Dienstag, 1.7.14, 14:00-15:00, SR119, Eckerstr. 1
Lagrangian submanifolds and examples
Dienstag, 1.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Decomposition, dimension, and degrees
Mittwoch, 2.7.14, 16:30-17:30, Raum 404, Eckerstr. 1
Donnerstag, 3.7.14, 17:00-18:00, Hörsaal II, Albertstr. 23b
The monodromy group of stratified bundles
Freitag, 4.7.14, 10:15-11:15, Raum 404, Eckerstr. 1
On a variety over a field of positive characteristic a stratified bundle is exactly what a flat connection is on a smooth manifold. Moreover, via the theory of Tannakian categories one can endow a stratified bundle with a monodromy group, in parallel with the complex case. We will see how this group varies in smooth families, proving a strong form of the positive equicharacteristic p-curvature theorem proposed by Esnault and Langer.
Value-at-Risk aggregation under uncertainty
Freitag, 4.7.14, 11:30-12:30, Raum 404, Eckerstr. 1
Rigidity results, inverse curvature flows and Alexandrov-Fenchel inequalities in the sphere
Montag, 7.7.14, 16:00-17:00, Hörsaal II, Albertstr. 23b
Aubry-Mather theory on manifolds
Montag, 7.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Finite time behavior and convergence of the Calabi flow
Montag, 7.7.14, 17:30-18:30, Hörsaal II, Albertstr. 23b
In his seminal work, E. Calabi introduced the notion called extremal Kähler metrics in a fixed cohomology class of Kähler metrics. The extremal Kähler metrics are the critical points of the Calabi energy which is the \(L^2\)-norm of the scalar curvature. The Kähler-Einstein metrics and which are more general, the constant scalar curvature Kähler metrics are both extremal Kähler metrics. In the same paper, Calabi also introduced a decreasing flow of the Calabi energy, which is now well-known as the Calabi flow. The Calabi flow is expected to be an effective tool to find the extremal Kähler metrics. Unfortunately, it is believed to be difficult to understand because of its fourth order and fully nonlinearity. However, in this talk we would like to describe its finite time singularities and asymptotic behavior.\n
On sizes of trees
Mittwoch, 9.7.14, 16:30-17:30, Raum 404, Eckerstr. 1
All automorphisms of the Calkin algebra are inner
Donnerstag, 10.7.14, 17:00-18:00, Hörsaal II, Albertstr. 23b
The generalized Lipman-Zariski problem
Freitag, 11.7.14, 10:15-11:15, Raum 404, Eckerstr. 1
The real and the holomorphic Chern-Simons functional
Montag, 14.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Definably amenable NIP groups
Mittwoch, 16.7.14, 16:30-17:30, Raum 404, Eckerstr. 1
Numerical Optimization for Control and Estimation
Donnerstag, 17.7.14, 17:00-18:00, Hörsaal II, Albertstr. 23b
The order of the reductions of points on algebraic groups
Freitag, 18.7.14, 10:15-11:15, Raum 404, Eckerstr. 1
Intersection Cohomology
Freitag, 18.7.14, 15:00-16:00, Hörsaal II, Albertstr. 23b
This will be an overview of intersection cohomology and\nits various incarnations in simplicial cohomology,\nsheaf cohomology and D-module theory. I try to answer a demand of some members of the Graduiertenkolleg. The talk may well turn into a questions and answers session after a while.
Rigidity properties of metric measure spaces with generalized lower Ricci curvature bounds
Montag, 21.7.14, 13:00-14:00, Raum 127, Eckerstr. 1
In this talk I will present a maximal diameter theorem for metric measure spaces that satisfy a Riemannian curvature-dimension condition. That is, if there is equality in the Bonnet-Myers estimate, the space is a spherical suspension.\nTopological rigidity results for metric measure spaces that satisfy a measure contraction property in general fail. We present a counterexample. This is a joint work with T. Rajala.
Lagrangian mean curvature flow
Montag, 21.7.14, 14:30-15:30, Raum 127, Eckerstr. 1
Mean curvature flow of pinched submanifolds in positively curved symmetric spaces
Montag, 21.7.14, 16:00-17:00, Raum 127, Eckerstr. 1
The Mathieu group \(M_{24}\)
Montag, 21.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Dienstag, 22.7.14, 14:00-15:00, Raum 226, Hermann-Herder-Str. 10
Discontinuous Galerkin Methods for Isogeometric Analysis for Elliptic and Allen-Cahn Equations on Surfaces
Dienstag, 22.7.14, 15:30-16:30, Raum 226, Hermann-Herder-Str. 10
Somre results on the coupling between the Ricci flow and the mean curvature flow
Dienstag, 22.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Some results on the coupling between the Ricci flow and the mean curvature flow
Dienstag, 22.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Schöne Gruppen
Mittwoch, 23.7.14, 16:30-17:30, Raum 404, Eckerstr. 1
Sheaf-theoretic analogues of Mathai-Quillen forms
Donnerstag, 24.7.14, 12:00-13:00, Raum 404, Eckerstr. 1
In this talk we review certain generalizations of Mathai-Quillen forms.\nOrdinary Mathai-Quillen forms are representations of Thom classes, and\nplay an important role in topological field theories. We shall\ndiscuss analogues appearing in more recent pseudo-topological\nfield theories, involving representations of certain sheaf cohomology\nclasses which reduce to ordinary Mathai-Quillen forms in special cases.\nWe discuss some basic properties and make a few conjectures.
Donnerstag, 24.7.14, 17:00-18:00, Hörsaal II, Albertstr. 23b
Ein Theorem von Borcherds im Fall klassischer Modulformen
Freitag, 25.7.14, 10:15-11:15, Raum 404, Eckerstr. 1
An overview of mirror symmetry
Freitag, 25.7.14, 14:00-15:00, Hörsaal II, Albertstr. 23b
In this talk I will give a gentle introduction to and\noverview of "mirror symmetry", a duality\nin two-dimensional quantum field theories\nin which theories with different interpretations are secretly equivalent.\nHistorically, mirror symmetry was a launching point for Gromov-Witten theory.\nWe review mirror symmetry and its role, and then outline modern extensions\nsuch as homological mirror symmetry and especially (0,2) mirror symmetry.
TBA
Montag, 28.7.14, 16:15-17:15, Raum 404, Eckerstr. 1
Bewertete Körper mit Automorphismus und NTP2
Mittwoch, 30.7.14, 16:30-17:30, Raum 404, Eckerstr. 1
Vorstellungsvortrag: Baumwertige Fleming-Viot Prozesse mit Mutation und Selektion
Donnerstag, 31.7.14, 17:00-18:00, Hörsaal II, Albertstr. 23b
In der mathematischen Populationsgenetik spielen Fleming-Viot\nProzesse eine sehr wichtige Rolle. Diese sind Verallgemeinerungen der Wright-Fisher\nProzesse und beschreiben die Evolution von Allelfrequenzen in einer Population.\nFleming-Viot Prozesse gehören zur Klasse wahrscheinlichkeitsmaßwertiger Markov-\nprozesse und werden oft mit Hilfe der dualen Koaleszenten studiert, die die\ngenealogische Struktur der Population beschreiben.\nBaumwertige Prozesse modellieren die Evolution der Population gemeinsam mit der\nzugehörigen genealogischen Struktur. Wir beschreiben die Konstruktion dieser\nProzesse und diskutieren einige ihrer Eigenschaften.\nDer Vortrag basiert auf gemeinsamen Arbeiten mit Andreas Greven und\nPeter Pfaffelhuber.\n