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Veranstaltungen
ERC seminar

Universität Leipzig

Augusteum - A314

seminar

08.01.20 03.03.20

ERC seminar

seminar

08.01.20 03.03.20

ERC seminar

- Previous Events

Previous Events


04.03.20	Gabriel Sattig (Universität Leipzig) : Dissipative Euler flows with Onsager-critical spatial regularity We will briefly outline the story of the step-by-step proof of Onsager's conjecture by Convex Integration and then present one single step: a result by T. Buckmaster, C. de Lellis and L. Székelyhidi (CPAM, 2016). In this paper, the critical spatial 1/3-Hölder regularity was achieved, but only in an "integrable in time" sense and not, as conjectured, uniformly in time. This requires an elaborate inhomogeneous treatment of the time interval, which we will review in detail.
06.02.20	Stephan Luckhaus (MPI MiS, Leipzig + Universität Leipzig) : Characterization of real rectifiable currents via convolution and compactness classes - Part II Characterization of real rectifiable currents via convolution and compactness classes. This seminar will be the second part to the "introductory part" of last week.
30.01.20	Stephan Luckhaus (MPI MiS, Leipzig + Universität Leipzig) : Characterization of real rectifiable currents via convolution and compactness classes
09.01.20	Ágnes Backhausz (Eötvös Loránd University and Rényi Institute, Budapest) : Action convergence of graphs, matrices and operators The notion of action convergence is motivated by problems in graph limit theory and by applications for random matrices and random graphs. In general, the main goal of graph limit theory is to define useful similarity metrics on graphs, and to find limit objects of convergent sequences. This approach makes it possible to use various tools from analysis and probability theory to solve problems in combinatorics. In the current work, we extended some of the already existing convergence notions for a more general setup, for example, for matrices with both positive and negative entries. The limit objects turned out to be bounded operators on certain L^2 spaces in this case. This convergence notion and possible applications will be presented in the talk. Joint work with Balázs Szegedy.