English
Related papers

Related papers: Classifying spaces of compact Lie groups that are …

200 papers

We provide detailed calculations for the classification of representations of compact simple Lie groups with non-empty boundary in the orbit space, first announced in a previous paper [arXiv:2112.00513] by the same authors.

Differential Geometry · Mathematics 2023-12-06 Claudio Gorodski , Andreas Kollross , Burkhard Wilking

We define for a topological group G and a family of subgroups F two versions for the classifying space for the family F, the G-CW-version E_F(G) and the numerable G-space version J_F(G). They agree if G is discrete, or if G is a Lie group…

Geometric Topology · Mathematics 2007-05-23 Wolfgang Lueck

Given a prime power $p^d$ with $p$ a prime and $d$ a positive integer, we classify the finite groups $G$ with $p^{2d}$ dividing $|G|$ in which all subgroups of order $p^d$ are complemented and the finite groups $G$ having a normal…

Group Theory · Mathematics 2022-02-17 Yu Zeng

Let $U$ be a finite dimentional vector space over $\mathbb R$ or $\mathbb C$, and let $\rho:G\to GL(U)$ be a representation of a connected Lie group $G$. A linear subspace $V\subset U$ is called universal if every orbit of $G$ meets $V$. We…

Representation Theory · Mathematics 2022-04-05 Saurav Bhaumik , Arunava Mandal

The rank rk(G) of a profinite group G is the supremum of d(H), where H ranges over all closed subgroups of G and d(H) denotes the minimal cardinality of a topological generating set for H. A compact topological group G admits the structure…

Group Theory · Mathematics 2011-01-06 B. Klopsch

We survey some recent advances in the homotopy theory of classifying spaces, and homotopical group theory. We focus on the classification of p-compact groups in terms of root data over the p-adic integers, and discuss some of its…

Algebraic Topology · Mathematics 2010-09-02 Jesper Grodal

We study the Balmer spectrum of the category of finite G-spectra for a compact Lie group G, extending the work for finite G by Strickland, Balmer-Sanders, Barthel-Hausmann-Naumann-Nikolaus-Noel-Stapleton and others. We give a description of…

Algebraic Topology · Mathematics 2019-11-20 Tobias Barthel , J. P. C. Greenlees , Markus Hausmann

A weakly complete vector space over $\mathbb{K}=\mathbb{R}$ or $\mathbb{K}=\mathbb{C}$ is isomorphic to $\mathbb{K}^X$ for some set $X$ algebraically and topologically. The significance of this type of topological vector spaces is…

Group Theory · Mathematics 2019-02-01 Rafael Dahmen , Karl Heinrich Hofmann

Let G be a unimodular Lie group, X a compact manifold with boundary, and M the total space of a principal bundle G--> M-->X so that M is also a strongly pseudoconvex complex manifold. In this work, we show that if there exists a point p in…

Complex Variables · Mathematics 2012-05-24 Giuseppe Della Sala , Joe J. Perez

For a finite group G of Lie type and a prime p, we compare the automorphism groups of the fusion and linking systems of G at p with the automorphism group of G itself. When p is the defining characteristic of G, they are all isomorphic,…

Group Theory · Mathematics 2016-01-19 Carles Broto , Jesper M. Møller , Bob Oliver

Let p be a prime. Uniform pro-p groups play a central role in the theory of p-adic Lie groups. Indeed, a topological group admits the structure of a p-adic Lie group if and only if it contains an open pro-p subgroup which is uniform.…

Group Theory · Mathematics 2012-10-19 Benjamin Klopsch , Ilir Snopce

We give p-local homotopy decompositions of the loop spaces of compact, simply-connected symmetric spaces for quasi-regular primes. The factors are spheres, sphere bundles over spheres, and their loop spaces. As an application, upper bounds…

Algebraic Topology · Mathematics 2016-01-20 Shizuo Kaji , Akihiro Ohsita , Stephen Theriault

Let $G$ be a complex reductive connected algebraic group equipped with the Sklyanin bracket. A classification of Poisson homogeneous $G$-spaces with connected isotropy subgroups is given. This result is based on Drinfeld's correspondence…

Quantum Algebra · Mathematics 2007-05-23 Eugene Karolinsky

We solve the long standing problem of classification of standard compact Clifford-Klein forms of homogeneous spaces of simple non-compact real Lie groups under the extra assumption that $G$, $H$, $L$ are simple and absolutely simple. Then…

Differential Geometry · Mathematics 2025-02-24 Maciej Bochenski , Aleksy Tralle

We study universal properties of locally compact G-spaces for countable infinite groups G. In particular we consider open invariant subsets of the \beta-compactification of G (which is a G-space in a natural way), and their minimal closed…

Group Theory · Mathematics 2014-12-09 Hiroki Matui , Mikael Rordam

We show that the classifying space of a $p$-local compact group is approximated by a telescope of classifying spaces of $p$-local finite groups. This result has numerous implications, like a Stable Elements Theorem for $p$-local compact…

Algebraic Topology · Mathematics 2016-10-19 Alex Gonzalez

In this article we consider a space B_{com}G assembled from commuting elements in a Lie group G first defined in [Adem, Cohen, Torres-Giese 2012]. We describe homotopy-theoretic properties of these spaces using homotopy colimits, and their…

Algebraic Topology · Mathematics 2015-05-27 Alejandro Adem , José Manuel Gómez

The present work completes the classification of the compact Riemann surfaces of genus g with an analytic automorphism of order p (prime number) and p > g. More precisely, we construct a parameteriza- tion space for them, we compute their…

Algebraic Geometry · Mathematics 2007-05-23 Giancarlo Urzua

Let $G$ be a simple algebraic group of exceptional type over an algebraically closed field of characteristic $p > 0$. This paper continues a long-standing effort to classify the connected reductive subgroups of $G$. Having previously…

Group Theory · Mathematics 2023-04-18 Alastair J. Litterick , Adam R. Thomas

The class of elementary totally disconnected groups is the smallest class of totally disconnected, locally compact, second countable groups which contains all discrete countable groups, all metrizable pro-finite groups, and is closed under…

Group Theory · Mathematics 2016-12-28 Helge Glockner