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Weekly research seminar
Organizers
- dr Łukasz Kubat
- prof. dr hab. Jan Okniński
Information
Thursdays, 12:15 p.m. , room: 5450Research fields
List of talks
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Dec. 5, 2024, 12:15 p.m.
Michał Ziembowski (Politechnika Warszawska)
O radykałach pierścieni skośnych wielomianów
Given a ring R, radicals of the polynomial ring R[x], and even of the skew polynomial ring R[x; σ] skewed by an automorphism σ on R, have been studied and described for many different radicals. …
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Nov. 28, 2024, 12:15 p.m.
University of Leeds (University of Leeds)
Cabling techniques for bijective solutions of the Yang–Baxter equation
In this talk, we introduce a definition of cabling for bijective non-degenerate set-theoretic solutions to the Yang–Baxter equation, with a focus on indecomposability. We examine fundamental differences between involutive and non-involutive solutions, particularly that involutive …
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Nov. 21, 2024, 12:15 p.m.
Paweł Matraś (Politechnika Warszawska)
Sprzężenia blokowych podalgebr algebry macierzy nad ciałem i opis klas sprzężoności podalgebr z tożsamością wielomianową [x1, y1][x2, y2]...[xq, yq] = 0
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Nov. 14, 2024, 12:15 p.m.
Czesław Bagiński (Politechnika Białostocka)
O problemie izomorfizmu modularnych algebr grupowych – kontrprzykłady (On the modular isomorphism problem of group algebras – counterexamples)
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Nov. 7, 2024, 12:15 p.m.
Ilaria Colazzo (University of Leeds)
Cabling techniques for bijective solutions of the Yang–Baxter equation
In this talk, we introduce a definition of cabling for bijective non-degenerate set-theoretic solutions to the Yang–Baxter equation, with a focus on indecomposability. We examine fundamental differences between involutive and non-involutive solutions, particularly that involutive …
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Oct. 31, 2024, 12:15 p.m.
Ryszard Andruszkiewicz (Uniwersytet w Białymstoku)
O rozszerzeniach pierścieni łącznych za pomocą pierścienia liczb całkowitych (On extensions of associative rings by the ring of integers)
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Oct. 24, 2024, 12:15 p.m.
Anna Zamojska-Dzienio (Politechnika Warszawska)
Algebry barycentryczne i współrzędne barycentryczne (Barycentric algebras and barycentric coordinates)
Barycentric algebras were introduced in the nineteen-forties for the axiomatization of real convex sets, presented algebraically with binary operations given by weighted means, the weights taken from the (open) unit interval in the real numbers. …
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Oct. 17, 2024, 12:15 p.m.
Leandro Vendramin (Vrije Universiteit Brussel)
Nichols Algebras over solvable groups
Nichols algebras appear in several areas of mathematics, from Hopf algebras and quantum groups to Schubert calculus and conformal field theories. In this talk, I will review the main problems related to Nichols algebras and …
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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 (Przekształcenia diagonalne teoriozbiorowych rozwiązań równania Yanga-Baxtera)
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 23, 2024, 12:15 p.m.
Piotr Grzeszczuk
On the Jacobson radical of tensor products of algebras (O radykale Jacobsona iloczynów tensorowych algebr)
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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 (Proste rozwiązanie problemu Strattona i Webba)
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April 18, 2024, 12:15 p.m.
Tomasz Brzeziński (University of Swansea)
On Lie afgebras (O afgebrach Liego)
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April 4, 2024, 12:15 p.m.
Andre Leroy (Universite d'Artois, Lens)
Products of idempotents (Iloczyny idempotentów)
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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 (Nieinwolutywne niezdegenerowane multipermutacyjne rozwiązania równania Yanga-Baxtera poziomu 2)
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