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Lead by examples we introduce the notions of Hopf algebra and quantum group. We study their geometry and in particular their Lie algebra (of left invariant vectorfields). The examples of the quantum sl(2) Lie algebra and of the quantum…

High Energy Physics - Theory · Physics 2007-05-23 Paolo Aschieri

The aim of the present paper is to provide a comprehensive introduction to some algebraic and geometric aspects of real representations of compact Lie groups, as well as some results concerning isotropy strata and restriction of invariants.

Algebraic Geometry · Mathematics 2026-02-19 Perla Azzi , Rodrigue Desmorat , Julien Grivaux , Boris Kolev

We survey the role of Lie algebras in the study of unstable homotopy groups.

Algebraic Topology · Mathematics 2026-05-21 Mark Behrens , Connor Malin

This article is the writing notes of a talk on Lie Antialgebras given by the second author at the conference "3Quantum: Algebra Geometry Information" that held in Tallinn in July 2012. The aim of this note is to give a brief survey of the…

Mathematical Physics · Physics 2013-10-15 Séverine Leidwanger , Sophie Morier-Genoud

These notes include introductory material on the notion of splitting fields for modules over a k-algebra where k is a field.

Representation Theory · Mathematics 2025-01-22 Cihan Bahran

Questions of the following sort are addressed: Does a given Lie group or Lie algebra act effectively on a given manifold? How smooth can such actions be? What fxed-point sets are possible? What happens under perturbations? Old results are…

Group Theory · Mathematics 2012-04-10 Morris W. Hirsch

In this paper, the author gives two methods to construct complete Lie algebras. Both methods show that the derivation algebras of some Lie algebras are complete.

Rings and Algebras · Mathematics 2007-05-23 BinYong Hsie

Lie systems form a class of systems of first-order ordinary differential equations whose general solutions can be described in terms of certain finite families of particular solutions and a set of constants, by means of a particular type of…

Mathematical Physics · Physics 2013-03-13 J. F. Cariñena , J. de Lucas

In this article, we introduce a new cohomology theory associated to a Lie 2-algebras. This cohomology theory is shown to extend the classical cohomology theory of Lie algebras; in particular, we show that the second cohomology group…

Category Theory · Mathematics 2022-08-25 Camilo Angulo

We introduce the notion of Gamma-Lie bialgebra, where Gamma is a group. These objects give rise to cocommutative co-Poisson algebras, for which we construct quantization functors. This enlarges the class of co-Poisson algebras for which a…

Quantum Algebra · Mathematics 2010-09-15 B. Enriquez , G. Halbout

We consider the group algebra over the field of complex numbers of the Weyl group of type B (the hyperoctahedral group, or the group of signed permutations) and of the Weyl group of type D (the demihyperoctahedral group, or the group of…

Representation Theory · Mathematics 2026-05-06 Christopher M. Drupieski , Jonathan R. Kujawa

We give a brief survey of recent results on word maps on simple groups and polynomial maps on simple associative and Lie algebras. Our focus is on parallelism between these theories, allowing one to state many new open problems and giving…

Group Theory · Mathematics 2013-04-19 Alexey Kanel-Belov , Boris Kunyavskii , Eugene Plotkin

We introduce anyonic Lie algebras in terms of structure constants. We provide the simplest examples and formulate some open problems.

q-alg · Mathematics 2009-10-30 S. Majid

This is a survey work on Lie algebras with ad-invariant metrics. We summarize main features, notions and constructions, in the aim of bringing into consideration the main research on the topic. We also give some list of examples in low…

Differential Geometry · Mathematics 2017-06-15 Gabriela P. Ovando

These are lecture notes that arose from a representation theory course given by the first author to the remaining six authors in March 2004 within the framework of the Clay Mathematics Institute Research Academy for high school students,…

Representation Theory · Mathematics 2011-02-02 Pavel Etingof , Oleg Golberg , Sebastian Hensel , Tiankai Liu , Alex Schwendner , Dmitry Vaintrob , Elena Yudovina

Hom-Lie algebras are generalizations of Lie algebras that arise naturally in the study of nonassociative algebraic structures. In this paper, the concepts of solvable and nilpotent Hom-Lie algebras studied further. In the theory of groups,…

Rings and Algebras · Mathematics 2023-05-02 Shadi Shaqaqha , Nadeen Kdaisat

Let $\mathbb{K}$ be a field, $R$ be an associative and commutative $\mathbb{K}$-algebra and $L$ be a Lie algebra over $\mathbb{K}$. We give some descriptions of injections from $L$ to Lie algebra of $\mathbb{K}$-derivations of $R$ in the…

Rings and Algebras · Mathematics 2013-05-13 Ievgen Makedonskyi

Lie algebras are an important class of algebras which arise throughout mathematics and physics. We report on the formalisation of Lie algebras in Lean's Mathlib library. Although basic knowledge of Lie theory will benefit the reader, none…

Logic in Computer Science · Computer Science 2021-12-10 Oliver Nash

In extending results from Lie to Leibniz algebras, it is helpful to have techniques which translate results from the former to the latter without having to repeat the (perhaps modified) arguments. Such a technique is developed in this work,…

Rings and Algebras · Mathematics 2015-12-18 Allison McAlister , Ernie Stitzinger , Ashley White

A Lie-Rinehart algebra consists of a commutative algebra and a Lie algebra with additional structure which generalizes the mutual structure of interaction between the algebra of functions and the Lie algebra of smooth vector fields on a…

Symplectic Geometry · Mathematics 2007-05-23 Johannes Huebschmann
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