blub
Dienstag, 5.4.16, 00:00-01:00, test
Flux compactification in type II supergravity
Mittwoch, 13.4.16, 14:00-15:00, Raum 404, Eckerstr. 1
Programmdiskussion
Montag, 18.4.16, 16:15-17:15, Raum 404, Eckerstr. 1
Willmore surfaces
Dienstag, 19.4.16, 16:15-17:15, Raum 404, Eckerstr. 1
Hindman's Theorem
Mittwoch, 20.4.16, 15:30-16:30, Raum 404, Eckerstr. 1
Categorification of Verma modules
Donnerstag, 21.4.16, 10:45-11:45, Raum 403, Eckerstr. 1
Donnerstag, 21.4.16, 17:00-18:00, Hörsaal II, Albertstr. 23b
A quick tour of tensor triangular geometry
Freitag, 22.4.16, 10:15-11:15, Raum 404, Eckerstr. 1
We shall recall the motivation to study tensor triangulated categories\nthrough the geometric invariant called the "spectrum". We shall then see how some of the well-known classification results due to Hopkins-Smith, Neeman, Thomason, Benson-Carlson-Rickard, and others, can be elegantly expressed using that spectrum. Finally, we shall see how new techniques of separable extensions of tensor-triangulated categories allow to approach new computations of such spectra, thus obtaining new classification results, for instance in equivariant stable homotopy theory.
Statistical phenomena in hospital epidemiology: Challenges for statisticians and clinicians
Freitag, 22.4.16, 12:00-13:00, Raum 404, Eckerstr. 1
Communicating statistical methods and interpreting results to clinicians belong to\nthe main tasks of medical statisticians. In this talk, I discuss several results of recent\npublications in high-impactjournals about the determinants and consequences of\nhospital-acquired infections. In such time-dependent analyses, one is confronted\nwith competing and intermediate events as well as time-dependent covariates. I\nwill give special emphasis on two different metrics which are often used without\nany distinction and which can easily lead to confusion among clinicians. Further,\nI will give an outlook about unsolved challenges for medical statisticians.
Γ-structures and symmetric spaces
Montag, 25.4.16, 16:15-17:15, Raum 404, Eckerstr. 1
Γ-structures are weak forms of multiplications on closed oriented manifolds.\nAs shown by Hopf the rational cohomology algebras of manifolds admitting\nΓ-structures are free over odd degree generators. We prove that this condition\nis also sufficient for the existence of Γ-structures on manifolds which are\nnilpotent in the sense of homotopy theory. This includes homogeneous spaces\nwith connected isotropy groups.\n\nPassing to a more geometric perspective we show that on compact oriented\nRiemannian symmetric spaces with connected isotropy groups and free rational\ncohomology algebras the canonical products given by geodesic symmetries define\nΓ-structures. This extends work of Albers, Frauenfelder and Solomon on\nΓ-structures on Lagrangian Grassmannians.\n
Min-Max theory and the Willmore conjecture, Fernando C. Marques, André Neves
Dienstag, 26.4.16, 16:15-17:15, Raum 404, Eckerstr. 1
The minimum of the expected value of the product of three uniform random variables: A problem (finally) solved
Dienstag, 26.4.16, 17:15-18:15, Raum 232, Eckerstr. 1
We illustrate the history and two different solution methods of this\nproblem which has been open for more than 30 years. These methods have\nopened new research fields in applied probability, statistics, financial mathe-\nmatics and actuarial science.
uncountable trees and pure decision
Mittwoch, 27.4.16, 16:30-17:30, Raum 404, Eckerstr. 1
From the impossibility of computing algebraically the position of a planet at prescribed time (Newton) to the general structure of period relations (Ayoub)
Donnerstag, 28.4.16, 17:00-18:00, Hörsaal II, Albertstr. 23b
\nAbstract: In lemma XXVIII of his Principia (1687), Newton asserts the\nimpossibility of computing algebraically the area of a section of a\nfixed oval in terms of the position of the line which cuts it. While the\nvalidity of both the statement and its proof have been vigorously\ndebated during three centuries, this has launched a vast reflection\nabout the transcendence of volumes of algebraic solids (as functions of\ndefining parameters), and more generally about the nature of the\nalgebraic relations relating such volumes. A general structure theorem,\nas simple to state as difficult to prove, has finally been found by J.\nAyoub (2015).\nIn this talk, we will review Newton’s lemma and its marvelous proof,\nstate the transcendence problem and explain Ayoub’s result.\n
Automorphism group of projective varieties with a view towards the dynamics
Freitag, 29.4.16, 10:15-11:15, Raum 404, Eckerstr. 1
We report our recent results on automorphism groups of normal projective varieties,\nfrom the viewpoints of the minimal model program in birational geometry and the study\nof dynamics.