Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation

This paper deals with left non-degenerate set-theoretic solutions to the Yang–Baxter equation (= LND solutions), a vast class of algebraic structures encompassing groups, racks, and cycle sets. To each such solution there is associated a shelf (i.e., a self-distributive structure) which captures its...

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Autor principal: Vendramin, Leandro
Publicado: 2017
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00018708_v304_n_p1219_Lebed
http://hdl.handle.net/20.500.12110/paper_00018708_v304_n_p1219_Lebed
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spelling paper:paper_00018708_v304_n_p1219_Lebed2023-06-08T14:21:49Z Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation Vendramin, Leandro Birack Braided homology Cubical homology Cycle set Extension Quandle Rack Shelf Yang–Baxter equation This paper deals with left non-degenerate set-theoretic solutions to the Yang–Baxter equation (= LND solutions), a vast class of algebraic structures encompassing groups, racks, and cycle sets. To each such solution there is associated a shelf (i.e., a self-distributive structure) which captures its major properties. We consider two (co)homology theories for LND solutions, one of which was previously known, in a reduced form, for biracks only. An explicit isomorphism between these theories is described. For groups and racks we recover their classical (co)homology, whereas for cycle sets we get new constructions. For a certain type of LND solutions, including quandles and non-degenerate cycle sets, the (co)homologies split into the degenerate and the normalized parts. We express 2-cocycles of our theories in terms of group cohomology, and, in the case of cycle sets, establish connexions with extensions. This leads to a construction of cycle sets with interesting properties. © 2016 Elsevier Inc. Fil:Vendramin, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00018708_v304_n_p1219_Lebed http://hdl.handle.net/20.500.12110/paper_00018708_v304_n_p1219_Lebed
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Birack
Braided homology
Cubical homology
Cycle set
Extension
Quandle
Rack
Shelf
Yang–Baxter equation
spellingShingle Birack
Braided homology
Cubical homology
Cycle set
Extension
Quandle
Rack
Shelf
Yang–Baxter equation
Vendramin, Leandro
Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation
topic_facet Birack
Braided homology
Cubical homology
Cycle set
Extension
Quandle
Rack
Shelf
Yang–Baxter equation
description This paper deals with left non-degenerate set-theoretic solutions to the Yang–Baxter equation (= LND solutions), a vast class of algebraic structures encompassing groups, racks, and cycle sets. To each such solution there is associated a shelf (i.e., a self-distributive structure) which captures its major properties. We consider two (co)homology theories for LND solutions, one of which was previously known, in a reduced form, for biracks only. An explicit isomorphism between these theories is described. For groups and racks we recover their classical (co)homology, whereas for cycle sets we get new constructions. For a certain type of LND solutions, including quandles and non-degenerate cycle sets, the (co)homologies split into the degenerate and the normalized parts. We express 2-cocycles of our theories in terms of group cohomology, and, in the case of cycle sets, establish connexions with extensions. This leads to a construction of cycle sets with interesting properties. © 2016 Elsevier Inc.
author Vendramin, Leandro
author_facet Vendramin, Leandro
author_sort Vendramin, Leandro
title Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation
title_short Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation
title_full Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation
title_fullStr Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation
title_full_unstemmed Homology of left non-degenerate set-theoretic solutions to the Yang–Baxter equation
title_sort homology of left non-degenerate set-theoretic solutions to the yang–baxter equation
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00018708_v304_n_p1219_Lebed
http://hdl.handle.net/20.500.12110/paper_00018708_v304_n_p1219_Lebed
work_keys_str_mv AT vendraminleandro homologyofleftnondegeneratesettheoreticsolutionstotheyangbaxterequation
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