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We prove that E_n-homology of non-unital commutative algebras can be described as functor homology when one considers functors from a certain category of planar trees with n levels. For different n these homology theories are connected by…

K-Theory and Homology · Mathematics 2010-06-01 Muriel Livernet , Birgit Richter

We borrow ideas from Grothendieck duality theory to noncommutative algebra, and use them to prove a reduction result for Hochschild cohomology for noncommutative algebras which are finite over their center. This generalizes a result over…

Rings and Algebras · Mathematics 2015-05-19 Liran Shaul

The main purpose of this paper is to define representations and a cohomology of color Hom-Lie algebras and to study some key constructions and properties. We describe Hartwig-Larsson-Silvestrov Theorem in the case of $\Gamma$-graded…

Rings and Algebras · Mathematics 2013-07-11 K. Abdaoui , F. Ammar , A. Makhlouf

In this paper we compute Hochschild homology of certain Soergel bimodules. Moreover, we describe explicitly the graded bimodule maps between Soergel bimodules. This computations are motivated by the categorifications of the colored…

Quantum Algebra · Mathematics 2008-10-21 Marko Stosic

We prove $L_{\infty}$-formality for the higher cyclic Hochschild complex $\chH$ over free associative algebra or path algebra of a quiver. The $\chH$ complex is introduced as an appropriate tool for the definition of pre-Calabi-Yau…

Rings and Algebras · Mathematics 2020-11-25 Natalia Iyudu , Maxim Kontsevich

We develop the basic properties of the higher commutator for congruence modular varieties.

Logic · Mathematics 2017-03-07 Andrew Moorhead

We describe the dimensions of low Hochschild cohomology spaces of exceptional periodic representation-infinite algebras of polynomial growth. As an application we obtain that an indecomposable non-standard periodic representation-infinite…

Representation Theory · Mathematics 2017-11-28 Jerzy Bialkowski , Karin Erdmann , Andrzej Skowronski

In this paper, we provide a conceptual new construction of the algebraic structure on the pair of the Hochschild cohomology spectrum (cochain complex) and Hochschild homology spectrum, which is analogous to the structure of calculus on a…

Algebraic Geometry · Mathematics 2020-10-12 Isamu Iwanari

We introduce a formalism for derived moduli functors on differential graded associative algebras, which leads to non-commutative enhancements of derived moduli stacks and naturally gives rise to structures such as Hall algebras. Descent…

Algebraic Geometry · Mathematics 2020-08-27 J. P. Pridham

We explain how the simplicial higher-order unstable homotopy operations defined in [BBS2] may be composed and inserted one in another, thus forming a coherent if complicated algebraic structure.

Algebraic Topology · Mathematics 2025-11-06 Samik Basu , David Blanc , Debasis Sen

In recent years, many new developments in theoretical physics, and in practical applications rely on different techniques of noncommutative algebras. In this review, we introduce the basic concepts and techniques of noncommutative physics…

High Energy Physics - Theory · Physics 2023-06-08 Shi-Dong Liang , Matthew J. Lake

We introduce Hopf algebroid covariance on Woronowicz's differential calculus. Using it, we develop quite a general framework of noncommutative complex geometry that subsumes the one in [2]. We present transverse complex and K\"ahler…

Quantum Algebra · Mathematics 2021-05-11 Suvrajit Bhattacharjee , Indranil Biswas , Debashish Goswami

In this PhD thesis, we give a new geometric approach to higher Teichm\"uller theory. In particular we construct a geometric structure on surfaces, generalizing the complex structure, and we explore its link to Hitchin components. The…

Differential Geometry · Mathematics 2020-07-02 Alexander Thomas

We define an algebraic setup of homology for hypergraphs, which defaults to simplicial homology in the case of graphs, and study its basic properties. As part of our study we define algebraic spanning trees of hypergraphs, along with…

Combinatorics · Mathematics 2021-09-07 Reinhard Diestel

Let $R$ be a commutative ring with unit. We develop a Hochschild cohomology theory in the category $\mathcal{F}$ of linear functors defined from an essentially small symmetric monoidal category enriched in $R$-Mod, to $R$-Mod. The category…

Representation Theory · Mathematics 2026-04-09 Nadia Romero

Tensoring finite pointed simplicial sets with commutative ring spectra yields important homology theories such as (higher) topological Hochschild homology and torus homology. We prove several structural properties of these constructions…

Algebraic Topology · Mathematics 2019-12-25 Irina Bobkova , Eva Höning , Ayelet Lindenstrauss , Kate Poirier , Birgit Richter , Inna Zakharevich

A lot of well-known functors such as group homology, cyclic homology of algebras can be described as limits of certain simply defined functors over categories of presentations. In this paper, we develop technique for the description of the…

K-Theory and Homology · Mathematics 2014-09-15 Sergei O. Ivanov , Roman Mikhailov

In this paper we classify invariant noncommutative connections in the framework of the algebra of endomorphisms of a complex vector bundle. It has been proven previously that this noncommutative algebra generalizes in a natural way the…

Mathematical Physics · Physics 2009-11-10 Thierry Masson , Emmanuel Serie

For a finite dimensional monomial algebra $\Lambda$ over a field $K$ we show that the Hochschild cohomology ring of $\Lambda$ modulo the ideal generated by homogeneous nilpotent elements is a commutative finitely generated $K$-algebra of…

K-Theory and Homology · Mathematics 2007-05-23 E. L. Green , N. Snashall , Ø. Solberg

We survey commutative and non-commutative analogs of uniform algebras in the Archimedean settings and also offer some non-Archimedean examples. Constraints on the development of non-complex uniform algebras are also discussed.

Functional Analysis · Mathematics 2010-10-22 Jonathan Mason
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