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Related papers: $C_2$-equivariant topological modular forms

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It is well known that the moduli space of flat connections on a trivial principal bundle MxG, where G is a connected Lie group, is isomorphic to the representation variety Hom(\pi_1(M), G)/G. For a tiling T, viewed as a marked copy of R^d,…

General Topology · Mathematics 2010-02-09 H. O. Erdin

We show that the derived $\infty$-category of permutation modules is equivalent to the category of modules over the Eilenberg-MacLane spectrum associated to a constant Mackey functor in the $\infty$-category of equivariant spectra. On such…

Algebraic Topology · Mathematics 2025-06-27 Yorick Fuhrmann

In Finite Group Modular Representation Theory, the basic objects are the indecomposable and simple modules. This paper offers a new classification of these objects that refines the Green Theory Classification of indecomposable and simple…

Representation Theory · Mathematics 2025-12-19 Morton E. Harris

In this paper, we study the equivariant homotopy type of a connected sum of linear actions on complex projective planes defined by Hambleton and Tanase. These actions are constructed for cyclic groups of odd order. We construct cellular…

Algebraic Topology · Mathematics 2021-09-28 Samik Basu , Pinka Dey , Aparajita Karmakar

Topological modular forms with level structure were introduced in full generality by Hill and Lawson. We show that these decompose additively in many cases into a few simple pieces and give an application to equivariant $TMF$. Furthermore,…

Algebraic Topology · Mathematics 2022-04-04 Lennart Meier

We study the construction of tensor products of representations up to homotopy, which are the A-infinity version of ordinary representations. We provide formulas for the construction of tensor products of representations up to homotopy and…

Algebraic Topology · Mathematics 2010-09-30 Camilo Arias Abad , Marius Crainic , Benoit Dherin

We classify localising subcategories of the stable module category of a finite group that are closed under tensor product with simple (or, equivalently all) modules. One application is a proof of the telescope conjecture in this context.…

Representation Theory · Mathematics 2011-04-18 Dave Benson , Srikanth B. Iyengar , Henning Krause

We use the equivariant Yang-Mills moduli space to investigate the relation between the singular set, isotropy representations at fixed points, and permutation modules realized by the induced action on homology for smooth group actions on…

Geometric Topology · Mathematics 2014-11-11 Ian Hambleton , Mihail Tanase

We prove that the Brauer group of TMF is isomorphic to the Brauer group of the derived moduli stack of elliptic curves. Then, we compute the local Brauer group, i.e., the subgroup of the Brauer group of elements trivialized by some \'etale…

Algebraic Geometry · Mathematics 2023-01-30 Benjamin Antieau , Lennart Meier , Vesna Stojanoska

We consider the space X = Sym^3(C^2) of binary cubic forms, equipped with the natural action of the group GL_2 of invertible linear transformations of C^2. We describe explicitly the category of GL_2-equivariant coherent D_X-modules as the…

Commutative Algebra · Mathematics 2017-12-29 András C. Lőrincz , Claudiu Raicu , Jerzy Weyman

Let G be a finite group. Given a finite G-set X and a modular tensor category C, we construct a weak G-equivariant fusion category, called the permutation equivariant tensor category. The construction is geometric and uses the formalism of…

Quantum Algebra · Mathematics 2015-03-14 Till Barmeier , Christoph Schweigert

In this thesis, we construct a new version of orthogonal calculus for functors $F$ from $C_2$-representations to $C_2$-spaces, where $C_2$ is the cyclic group of order 2. For example, the functor $BO(-)$, which sends a $C_2$-representation…

Algebraic Topology · Mathematics 2024-08-29 Emel Yavuz

We study the topology of spaces related to Kac-Moody groups. Given a split Kac-Moody group over the complex numbers, let K denote the unitary form with maximal torus T having normalizer N(T). In this article we study the cohomology of the…

Algebraic Topology · Mathematics 2013-01-03 Nitu Kitchloo

The purpose of this paper is to describe a method for computing homotopy groups of the space of $\alpha$-stable representations of a quiver with fixed dimension vector and stability parameter $\alpha$. The main result is that the homotopy…

Symplectic Geometry · Mathematics 2009-10-27 Graeme Wilkin

We apply a theorem of J. Lurie to produce cohomology theories associated to certain Shimura varieties of type U(1,n-1). These cohomology theories of topological automorphic forms (TAF) are related to Shimura varieties in the same way that…

Algebraic Topology · Mathematics 2008-12-11 Mark Behrens , Tyler Lawson

We show that the tensor product of modules of tensor fields is a noetherian module as a module over any graded Lie subalgebra of finite codimension in the Lie algebra of polynomial vector fields on $\mathbb{R}^n$. As a corollary, we prove…

Quantum Algebra · Mathematics 2022-11-17 Boris Feigin , Alexei Kanel-Belov , Anton Khoroshkin

We prove an automatic convergence theorem for holomorphic modular forms on tube domains. The argument works in some generality, and covers in particular the case of orthogonal groups, symplectic groups, unitary and quaternion unitary…

Number Theory · Mathematics 2026-03-03 Aaron Pollack

In this work, we begin studying the classification, up to isomorphism, of unstable H*V-A-modules E such that the tensor product of F_2 and E over H*V is isomorphic to a given unstable A-module.

Algebraic Topology · Mathematics 2009-04-21 Dorra Bourguiba

Given an oriented surface of positive genus with finitely many punctures, we classify the finite orbits of the mapping class group action on the moduli space of semisimple complex special linear two dimensional representations of the…

Geometric Topology · Mathematics 2022-06-29 Indranil Biswas , Subhojoy Gupta , Mahan Mj , Junho Peter Whang

Given a graded $E_1$-module over an $E_2$-algebra in spaces, we construct an augmented semi-simplicial space up to higher coherent homotopy over it, called its canonical resolution, whose graded connectivity yields homological stability for…

Algebraic Topology · Mathematics 2019-10-23 Manuel Krannich