Events – Page 9

24.06.2021 In Events By MathPlus

16 July – Helmut Hofer: The Floer Jungle: 35 Years of Floer Theory (Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar)

An exceptionally gifted mathematician and an extremely complex person, Floer exhibited, as one friend put it, a "radical individuality." Indeed, his revolutionary mathematical ideas, contradicting conventional wisdom, could only be inspired by such impetus, and can only be understood in this context. Helmut Hofer is

22.06.2021 In Events By MathPlus

2 July – Kathryn Hess: Topological insights in neuroscience

Over the past decade, research at the interface of topology and neuroscience has grown remarkably fast. In this talk, after a very brief introduction to the necessary elements of neuroscience, Hess will survey the results obtained by her and her collaborators when applying topological tools

04.05.2021 In Events By MathPlus

21 May – Martin R. Bridson: Chasing finite shadows of infinite groups through geometry

There are many situations in geometry and group theory where it is natural, convenient or necessary to explore infinite groups via their actions on finite objects. But how much understanding can one really gain about an infinite group by examining its finite images? Sometimes little,

30.04.2021 In Events By MathPlus

7 May – Sebastian Pokutta: Conditional Gradients in Machine Learning and Optimization

Conditional Gradient Methods are an important class of methods to minimize smooth convex functions over polytopes. In this talk, Pokutta will give a broad overview of these methods and their applications and present some recent results both in traditional optimization and learning as well as

22.03.2021 In Events By MathPlus

16 Apr – Maria Chudnovsky: Induced subgraphs and tree decompositions (Kovalevskaya Colloquium)

Tree decompositions are a powerful tool in structural graph theory that is traditionally used in the context of forbidden graph minors. Connecting tree decompositions and forbidden induced subgraphs has so far remained out of reach. Recently, several results in this direction have been obtained. The

24.02.2021 In Events By MathPlus

2 Mar – Two Mathematical Talks at the BMS Days 2021!

On 1 and 2 March 2021, the Berlin Mathematical School will host its first online BMS Days. On Tuesday, 2 March 2021 all events will be open to the MATH+ community. We are pleased to invite you to attend the following two talks: Gabriele Steidl

09.02.2021 In Events By MathPlus

19 Feb – Richard E. Schwartz: On the optimal paper Möbius band

In this talk, Schwartz will explain the bounds proved by Halpern and Weaver and then show how to improve the lower bound. He will also explain an approach to getting the sharp bound, which amounts to approximating a paper Möbius band by certain kinds of

01.02.2021 In Events By MathPlus

5 Feb – Sylvia Serfaty: Systems of points with Coulomb interactions

Large ensembles of points with Coulomb interactions arise in various settings of condensed matter physics, classical and quantum mechanics, statistical mechanics, random matrices and even approximation theory, and they give rise to a variety of questions pertaining to analysis, partial differential equations and probability. Sylvia Serfaty

19.01.2021 In Events By MathPlus

22 Jan – Rolf Krause: Scales of knowledge

Complex coupled systems arise in medicine, science and engineering. Mathematically, these can be nonlinear coupled systems of PDEs or the nonconvex minimization problems found in deep learning. In this talk, we show how multi-scale approaches give a mathematical technique for accurate and efficient simulation of

12.01.2021 In Events By MathPlus

15 Jan – Harald Helfgott: Expander graphs in number theory: the prime divisibility graph

An expander graph may be defined in any of several ways: in terms of boundaries of vertex sets, or in terms of eigenvalues of the graph Laplacian, or by random walks