Weekly research seminar
Organizers
- dr hab. Marcin Chałupnik
- dr hab. Andrzej Weber, prof. UW
- dr Krzysztof Ziemiański
Information
Wednesdays, 10:30 a.m. , room: 4070Home page
http://duch.mimuw.edu.pl/~aweber/STA/Research fields
List of talks
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Jan. 25, 2018, 4:15 p.m.
Adam i Witold Bednorz (FUW i MIMUW)
Sphere eversion
60 years after Smale's proof it is still not easy to visualize turning a sphere smoothly inside out. We invite for a journey from history of sphere eversions to modern development and 3D modelling tools.
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Jan. 11, 2018, 4:15 p.m.
Andrzej Weber (MIMUW)
Motywiczne klasy charakterystyczne orbit działania grup liniowych
Opowiem o wspólnej pracy z L. Feherem i R. Rimanyim o klasach charakterystycznych w K-teorii dla dziania grupy liniowej na rozmaitości algebraicznej ze skończaoną ilością orbit. Podstawowe przykłady, to przestrzenie jednorodne z działaniem grupy Borela …
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Dec. 7, 2017, 4:15 p.m.
Jan Spaliński (PW)
On the paper ,,Stability of Persistence Diagrams" by D. Cohen-Steiner, H. Edelsbrunner and J. Harer
The goal of the talk is to describe the contents of paper mentioned in the title. This interesting paperaddresses a number of topics. First, it introduces an analogue of a Morse function in the setting …
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Nov. 30, 2017, 4:15 p.m.
Magdalena Zielenkiewicz (MIM UW)
N-categories and physics
We will try do explain how n-categories naturally arise as the most convenient framework for modern physics, from quantum mechanics through field theories to quantum gravity.
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Nov. 16, 2017, 4:15 p.m.
Krzysztof Ziemiański (MIiM UW)
Directed path spaces via discrete vector fields
Higher Dimensional Automaton is a cubical complex with two distinguished vertices: the initial and the final state and some labeling of vertices. Higher Dimensional Automata are used to model concurrent programs; possible states (respectively possible …
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Oct. 26, 2017, 4:15 p.m.
Bruno Stonek (Université Paris 13)
Topological Hochschild homology of KU
We give different descriptions of the topological Hochschild homology (THH) of the periodic complex topological K-theory ring spectrum KU as a commutative KU-algebra. We also describe the iterated THH of KU.
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Oct. 19, 2017, 4:15 p.m.
Andrzej Szczepański (UG)
Intersection forms of almost-flat 4-manifolds
We calculate intersection forms of all 4-dimensional almost-flat manifolds.
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Oct. 12, 2017, 4:15 p.m.
Bob Oliver (Université Paris 13)
Automorphisms of fusion systems and p-completed classifying spaces of finite simple groups
https://www.mimuw.edu.pl/~aweber/STA/17.10.12.pdf
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Oct. 11, 2017, 12:15 p.m.
Bob Oliver (Université Paris 13)
Local structure of finite groups and of their classifying spaces
Wspólnie z seminarium z Topologii https://www.mimuw.edu.pl/~aweber/STA/17.10.11.pdf
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June 6, 2017, 2:30 p.m.
Antoni Pierzchalski (Uniwersytet Łódzki)
Gradients: the geometry and the ellipticity
The Stein-Weiss gradients - or shortly gradients are irreducible summands of a covariant derivative on a manifold equipped with a geometric structure. For the gradients and their compositions the main problems: the dependence on the …
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May 30, 2017, 2:30 p.m.
Andrzej Kozłowski (UW)
Topology of spaces of rational curves on a toric variety