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Jens Hoppe: Non-commutative curvature and classical geometry

Jens Hoppe, KTH

Time: Wed 2010-03-24 16.00

Location: SU, byggnad 5, rum 14

Matrix analogues of embedded surfaces, as well as discrete versions of curvature and the Euler characteristic will be presented, and the new notions, related to a novel algebraic formulation of classical differential geometry, will be illustrated by a large class of examples.

Coffee and tea served at 15.30.

Titel Datum
Philip Maini: Modelling collective cell motion 2018‑09‑26
Leslie Greengard: Inverse problems in acoustic scattering and cryo-electron microscopy 2018‑04‑11
James Norris: Scaling limits for planar aggregation with subcritical fluctuations 2018‑03‑21
Sofia Olhede: Network Data Analysis 2018‑02‑07
Viviane Baladi: Analytical tools for dynamics with singularities, including Sinai billiards 2017‑11‑29
Gerard van der Geer 2017‑09‑27
János Pach 2017‑06‑07
Alicia Dickenstein 2017‑04‑05
Arno Kuijlaars: Universality in random matrix theory 2017‑02‑25
Karen Smith 2016‑12‑07
Jeff Steif: Noise Sensitivity of Boolean Functions and Critical Percolation 2016‑10‑28
Martin Hairer: Taming infinities. 2016‑09‑29
Mattias Jonsson: Complex, tropical and non-Archimedean geometry 2016‑06‑01
Yulij Ilyashenko: Towards the global bifurcation theory on the plane 2016‑04‑27
Volodymyr Mazorchuk: (Higher) representation theory 2016‑03‑09
Tobias Ekholm: Knot contact homology, Chern-Simons, and topological strings 2016‑02‑10
Dmitry Khavinson: "Between two truths of the real domain, the easiest and shortest path quite often passes through the complex domain." P. Painleve, 1900. A variation on the theme of analytic continua 2015‑12‑12
Kathryn Hess: A calculus for knot theory 2015‑11‑06
Gregory F. Lawler: Self-avoiding motion 2015‑10‑09
Claudio Procesi: Analytic and combinatorial aspects of the Non Linear Schroedinger equation (NLS) on a torus 2015‑05‑27
Alexander Razborov: Continuous Combinatorics 2015‑03‑18
Christiane Tretter: Operator theory and applications: a successful interplay 2015‑02‑04
Michael Rathjen: Is Cantor’s continuum problem still open? 2014‑10‑15
Irene Fonseca: Variational Methods in Materials and Image Processing 2014‑09‑03
Ib Madsen: Moduli Spaces and Topology 2014‑06‑11
Mikko Salo: Can one hear the shape of a space? 2014‑03‑27
Svante Janson: Random Graphs 2014‑01‑29
Mireille Bousquet-Mélou: Self-avoiding walks 2014‑05‑07
Kristian Seip: Analysis on polydiscs 2013‑11‑27
Bernd Sturmfels: The Euclidean Distance Degree 2013‑10‑09
Christoph Thiele: L^p theory for outer measures and applications 2013‑09‑25
Antti Kupiainen: Critical Multiplicative Chaos 2013‑05‑15
Günther Uhlmann: Cloaking: Science Meets Science Fiction 2013‑04‑24
Anatoliy Fomenko: Topological classification of Hamiltonian equations with symmetries. Application to physics and mechanics 2013‑02‑27
Jan-Erik Roos: Classical Lie algebras contra infinite-dimensional positively graded Lie algebras 2013‑02‑06
Hendrik Lenstra: Escher and the Droste effect 2012‑12‑12
Bo Berndtsson: Complex Brunn-Minkowski theory 2012‑11‑21
Martin Aigner: From Irrational Numbers to Perfect Matchings: 100 Years of Markov’s Uniqueness Problem 2012‑10‑10
Vladimir Rokhlin: Accurate Randomized Algorithms of Numerical Analysis 2012‑05‑19
Martin R. Bridson: Discrete groups: A story of geometry, complexity, and imposters 2012‑04‑11
Mats Gyllenberg: Rock, scissors, paper — what a children's game can tell us about evolution 2012‑03‑14
Persi Diaconis: Who Needs Positivity? 2012‑02‑10
Wendelin Werner: Random surfaces, random geometries 2011‑12‑14
Ragni Piene: The problematic art of counting 2011‑11‑16
Günter M. Ziegler: On some partition problems and their configuration spaces 2011‑10‑12
Carles Broto: Local aspects of groups and loop spaces 2011‑05‑11
Bernd Sturmfels: Quartic Curves and their Bitangents 2011‑02‑02
Torsten Ekedahl: The Sato-Tate conjecture 2010‑11‑03
Jesper Grodal: Finite loop spaces 2010‑11‑10
Amol Sasane: An analogue of Serre’s Conjecture and Control Theory 2010‑10‑13
Reiner Werner: Quantum correlations - how to prove a negative from finitely many observations 2010‑09‑29
Warwick Tucker: Validated Numerics - a short introduction to rigorous computations 2010‑09‑22
Idun Reiten: Cluster categories and cluster algebras 2010‑09‑01
Stefano Demichelis: Use and misuse of mathematics in economic theory 2010‑05‑26
Gregory G. Smith: Old and new perspectives on Hilbert functions 2010‑04‑14
Tony Geramita: Sums of Squares: Evolution of an Idea. 2010‑03‑31
Jens Hoppe: Non-commutative curvature and classical geometry 2010‑03‑24
Margaret Beck: Understanding metastability using invariant manifolds 2010‑03‑03
Jan-Erik Björk: Glimpses from work by Carleman 2010‑02‑10
Sandra Di Rocco: Interaction between Convex and Algebraic Geometry 2009‑12‑16
Alexander Gorodnik: Arithmetic Geometry and Dynamical Systems 2009‑11‑18
Laurent Bartholdi: Insanely twisted rabbits 2009‑11‑18
Nils Dencker: The spectral instability of differential operators 2009‑11‑04
Peter Jagers: Extinction: how often, how soon, and in what way? 2009‑10‑21
Norbert Peyerimhoff: Expander graphs — some background and new examples 2009‑10‑07
Saharon Shelah: Hilbert's First Problem and the number four 2009‑09‑23
Jürg Kramer: Irrationality of √2 and Arakelov Geometry 2009‑09‑09