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Weekly research seminar
Organizers
- 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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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
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May 23, 2017, 2:30 p.m.
Jan Spaliński (P.W.)
Finding Homology of Submanifolds with high confidence from random samples - a paper by P. Niyogi, S. Smale and S. Weinberger.
The talk will present the results and some ideas of the proofs from the paper mentioned in the title of the talk.
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May 16, 2017, 2:30 p.m.
Jarosław Buczyński (UW/IMPAN)
Continuous k-regular maps
A continuous map from R^m to R^N or from C^m to C^N is called k-regular if the images of any k points are linearly independent. Given integers m and k a problem going back …
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March 28, 2017, 2:30 p.m.
Wojciech Politarczyk (UW/UAM)
New periodicity criterion from Khovanov homology
We will discuss a new criterion, given in terms of Khovanov homology, for deciding whether a given knot is periodic or not. We will also discuss many examples showing the strength of the new criterion. …
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March 21, 2017, 2:30 p.m.
Józef Przytycki: (George Washington University)
Almost extreme Khovanov homology
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March 14, 2017, 2:30 p.m.
Krzysztof Ziemiański (UW)
An introduction to Khovanov homology
I will present a definition of Khovanov homology, state some of its properties and give examples of calculations. I will also describe constructions of spaces whose homology or homotopy groups are isomorphic to Khovanov homology …
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Jan. 17, 2017, 2:30 p.m.
Andrzej Szczepański (UG)
Diffuse groups (Grupy rozproszone)
Grupy rozproszone zostaly zdefiniowane przez B. Bowditcha w roku 1999. Grupa G jest rozproszona o ile kazdy jej niepusty, skonczony podzbior A zawiera punkt ekstremalny, tzn. element a\in A taki ze dla wszystkich g\in G\{1} …
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Jan. 10, 2017, 2:30 p.m.
Joachim Jelisiejew (UW)
Tropical and Berkovich spaces
Tropical varieties are piecewise linear shadows of algebraic varieties with fixed embedding. They enjoy a fruitful interaction between geometry and piecewise linear combinatorics. On one side, we can recover geometric information, such as Hodge …
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Dec. 6, 2016, 1:30 p.m.
Jan Spaliński (PW)
What is topological data analysis?
The talk will be an introduction to topological data analysis - a field of research on the boarder of algebraic topology, statistics and computer science. The field was created to a large extent by H. …
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Nov. 29, 2016, 2:30 p.m.
Abdó Roig-Maranges (UW)
Algebraic cycles, Lawson homology and duality
In the beginning of the 90s, Lawson and friedlander introduced a new way of looking at algebraic cycles on a complex algebraic variety via the homotopy type of its moduli space, instead of using the …
