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Related papers: Universal operations in Hochschild homology

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We conjecture that quantum Gaudin models in affine types admit families of local higher Hamiltonians, labelled by the (countably infinite set of) exponents, whose eigenvalues are given by functions on a space of meromorphic opers associated…

Quantum Algebra · Mathematics 2020-07-29 Sylvain Lacroix , Benoit Vicedo , Charles A. S. Young

In the first part, we give an explicit description of the cotangent complex of differential graded (dg) operads, modeled as an operadic infinitesimal bimodule. This leads to a uniform formula for the Quillen cohomology of their associated…

Algebraic Topology · Mathematics 2026-02-10 Yonatan Harpaz , Truong Hoang

We introduce a commutative associative graded algebra structure on the direct sum Z of the centers of the Hecke algebras associated to the symmetric groups in n letters for all n. As a natural deformation of the classical construction of…

Representation Theory · Mathematics 2015-06-08 Jinkui Wan , Weiqiang Wang

Let M be a closed, connected manifold, and LM its loop space. In this paper we describe closed string topology operations in h_*(LM), where h_* is a generalized homology theory that supports an orientation of M. We will show that these…

Algebraic Topology · Mathematics 2007-05-23 Ralph L. Cohen , Veronique Godin

We settle several questions about the theory of universal deformation quantization of Lie bialgebras by giving their complete classification up to homotopy equivalence. An important new technical ingredient introduced in this paper is an…

Quantum Algebra · Mathematics 2017-01-20 Sergei Merkulov , Thomas Willwacher

It is observed that Kaygun's Hopf-Hochschild cochain complex for a module-algebra is a brace algebra with multiplication. As a result, (i) an analogue of Deligne's Conjecture holds for module-algebras, and (ii) the Hopf-Hochschild…

K-Theory and Homology · Mathematics 2007-05-23 Donald Yau

This paper is a continuation of arXiv:1201.1102. We investigate the orbit closures for the class of representations of simple algebraic groups associated to various gradings on the simple Lie algebra of type $E_7$. The methods for…

Representation Theory · Mathematics 2013-02-05 Witold Kraskiewicz , Jerzy Weyman

We exhibit the symmetric monoidal $\infty$-category $\mathrm{GrCob}$ of graph cobordisms between spaces as a full $\infty$-subcategory of the $\infty$-category $\mathrm{Psh}(\mathrm{Gr})$ of presheaves over $\mathrm{Gr}$, where…

Algebraic Topology · Mathematics 2026-01-08 Andrea Bianchi , Adela Yiyu Zhang

The mod p homology of E-infinity spaces is a classical topic in algebraic topology traditionally approached in terms of Dyer--Lashof operations. In this paper, we offer a new perspective on the subject by providing a detailed investigation…

Algebraic Topology · Mathematics 2020-01-10 Anssi Lahtinen

In this paper we investigate the orbit closures for the class of representations of simple algebraic groups associated to various gradings on a simple Lie algebras of type $E_6$, $F_4$ and $G_2$. The methods for classifying the orbits for…

Representation Theory · Mathematics 2019-02-14 Witold Kraśkiewicz , Jerzy Weyman

Monoidal categories with additional structure such as a braiding or some form of duality abound in quantum topology. They often appear in tandem with Frobenius algebras inside them. Motivations for this range from the theory of module…

Quantum Algebra · Mathematics 2025-07-23 Lukas Woike

We describe a construction of the cyclotomic structure on topological Hochschild homology ($THH$) of a ring spectrum using the Hill-Hopkins-Ravenel multiplicative norm. Our analysis takes place entirely in the category of equivariant…

K-Theory and Homology · Mathematics 2016-10-04 V. Angeltveit , A. Blumberg , T. Gerhardt , M. Hill , T. Lawson , M. Mandell

For any integer $d$ we introduce a prop $RHra_d$ of oriented ribbon hypergraphs (in which "edges" can connect more than two vertices) and prove that it admits a canonical morphism of props, $$ Holieb_d^\diamond \longrightarrow RHra_d, $$…

Quantum Algebra · Mathematics 2021-05-27 Sergei Merkulov

We show that the reduced Hochschild homology of a DG open Frobenius algebra has the natural structure of a Batalin-Vilkovisky coalgebra, and the reduced cyclic homology has the natural structure of a gravity coalgebra. This gives an…

Quantum Algebra · Mathematics 2009-03-14 Xiaojun Chen , Wee Liang Gan

We give a brief summary of algebraic aspects of string theory arising in the noncommutative geometry setting of foliations called string diagrammatics which we introduced jointly with Bob Penner. We furthermore discuss how this gives rise…

High Energy Physics - Theory · Physics 2008-11-26 Ralph Kaufmann

This sketch argues that work of Hesselholt on the topological Hochschild homology of $\Cp$ extends, using work of Scholze and others, to define complex orientations for a version of topological Hochschild homology for rings of integers in a…

Algebraic Topology · Mathematics 2020-03-06 Jack Morava

This paper presents a comprehensive study of H-Toeplitz operators on the Fock space, a class of operators that synthesizes structural elements of both Toeplitz and Hankel operators. We derive explicit matrix representations for these…

We provide the full theory of thermodynamic formalism for a very general collection of entire functions in class $\mathcal B$. This class overlaps with the collection of all entire functions for which thermodynamic formalism has been so far…

Dynamical Systems · Mathematics 2019-10-22 Volker Mayer , Mariusz Urbański

We study one-dimensional Schr\"odinger operators defined as closed operators that are exactly solvable in terms of the Gauss hypergeometric function. We allow the potentials to be complex. These operators fall into three groups. The first…

Mathematical Physics · Physics 2026-03-10 Jan Dereziński , Pedram Karimi

Family of doublings of Hopf algeras based on the product of algebra and its dual are constructed and studied. Special cases of these construction may be considered as natural quantum analogs of rings of differential operators on groups.…

Mathematical Physics · Physics 2007-05-23 S. P. Novikov