Weekly research seminar
Organizers
- prof. dr hab. Jan Okniński
Information
Thursdays, 12:15 p.m. , room: 5450Research fields
List of talks
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June 13, 2024, 12:15 p.m.
Premysl Jedlicka (Czech University of Life Sciences Prague)
Diagonal mappings of set-theoretic solutions of the Yang-Baxter equation
It is well known that, for involutive non-degenerate solutions of the Yang-Baxter equation, the operations $T(x)=\tau_x^{-1}(x)$ and $U(x)=\sigma_x^{-1}(x)$ are mutually inverse. We study these mappings in the non-involutive case, under different additional conditions (like bijectivity, …
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May 9, 2024, 12:15 p.m.
Mateusz Woronowicz (Uniwersytet w Białymstoku)
A simple solution of the problem of Stratton and Webb
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March 21, 2024, 12:15 p.m.
Agata Pilitowska (Politechnika Warszawska)
Noninvolutive nondegenerate multipermutation solutions of the Yang-Baxter equation of level 2
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Feb. 29, 2024, 12:15 p.m.
Filip Mazowiecki (MIMUW)
Automaty ważone, czyli skończenie generowane półgrupy macierzy
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Jan. 18, 2024, 12:15 p.m.
Iryna Raievska, Maryna Raievska (Uniwersytet Warszawski)
Groups of order p^4 as additive groups of local nearrings
It is not true that any finite group is the additive group of a nearring with identity. Therefore it is important to determine such groups and to classify some classes of nearrings with identity on …
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Dec. 14, 2023, 12:15 p.m.
Joachim Jelisiejew (Uniwersytet Warszawski)
Degenerate quadrics do not really exist and why this is useful
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Nov. 30, 2023, 12:15 p.m.
Andrzej Weber (Uniwersytet Warszawski)
podtytuł: Osobliwości domknięć i struktura kombinatoryczna
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Nov. 23, 2023, 12:15 p.m.
Ganna Kudryavtseva (University of Ljubljana )
Partial actions of semigroups: globalization, expansion and applications
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Nov. 9, 2023, 12:15 p.m.
Małgorzata Hryniewicka (Uniwersytet w Białymstoku)
Algebry Hopfa versus sterty Hopfa
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Oct. 26, 2023, 1:15 p.m.
Vladimir Bavula (University of Sheffield)
The most general theory of one-sided fractions