1.

Record Nr.

UNINA9910698648803321

Autore

Kashaev Rinat

Titolo

A Course on Hopf Algebras / / by Rinat Kashaev

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2023

ISBN

9783031263064

9783031263057

Edizione

[1st ed. 2023.]

Descrizione fisica

1 online resource (173 pages)

Collana

Universitext, , 2191-6675

Disciplina

512.55

Soggetti

Associative rings

Associative algebras

Manifolds (Mathematics)

Algebras, Linear

Topological groups

Lie groups

Mathematical physics

Algebra, Homological

Associative Rings and Algebras

Manifolds and Cell Complexes

Linear Algebra

Topological Groups and Lie Groups

Mathematical Physics

Category Theory, Homological Algebra

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Sommario/riassunto

This textbook provides a concise, visual introduction to Hopf algebras and their application to knot theory, most notably the construction of solutions of the Yang–Baxter equations. Starting with a reformulation of the definition of a group in terms of structural maps as motivation for the definition of a Hopf algebra, the book introduces the related algebraic notions: algebras, coalgebras, bialgebras, convolution



algebras, modules, comodules. Next, Drinfel’d’s quantum double construction is achieved through the important notion of the restricted (or finite) dual of a Hopf algebra, which allows one to work purely algebraically, without completions. As a result, in applications to knot theory, to any Hopf algebra with invertible antipode one can associate a universal invariant of long knots. These constructions are elucidated in detailed analyses of a few examples of Hopf algebras. The presentation of the material is mostly based on multilinear algebra, with all definitions carefully formulated and proofs self-contained. The general theory is illustrated with concrete examples, and many technicalities are handled with the help of visual aids, namely string diagrams. As a result, most of this text is accessible with minimal prerequisites and can serve as the basis of introductory courses to beginning graduate students.