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We show that a projective space P^\infty(Z/2) endowed with the Alexandrov topology is a classifying space for finite closed coverings of compact quantum spaces in the sense that any such a covering is functorially equivalent to a sheaf over…

Quantum Algebra · Mathematics 2012-06-20 Piotr M. Hajac , Atabey Kaygun , Bartosz Zielinski

We compare two approaches to the homotopy theory of infinity-operads. One of them, the theory of dendroidal sets, is based on an extension of the theory of simplicial sets and infinity-categories which replaces simplices by trees. The other…

Algebraic Topology · Mathematics 2015-01-30 Gijs Heuts , Vladimir Hinich , Ieke Moerdijk

It is shown that for any morphism, i: g --> h, of Lie algebras the vector space underlying the Lie algebra h is canonically a g-homogeneous formal manifold with the action of g being highly nonlinear and twisted by Bernoulli numbers. This…

Quantum Algebra · Mathematics 2008-06-04 S. A. Merkulov

We generalize the construction of multitildes in the aim to provide multitilde operators for regular languages. We show that the underliying algebraic structure involves the action of some operads. An operad is an algebraic structure that…

Formal Languages and Automata Theory · Computer Science 2016-01-22 Samuele Giraudo , Jean-Gabriel Luque , Ludovic Mignot , Florent Nicart

We define a generalization of (coloured) operads based on double lax functors and we construct a model structure on the associated category of generalized simplicial (coloured) operads. In particular, we obtain a model structure on the…

Algebraic Topology · Mathematics 2026-04-03 Gregoire Marc

Classical algebraic structures require exact satisfaction of their defining axioms. We propose similarity algebra, a framework extending algebraic and Lie structures to settings where operations satisfy quantitative bounds up to a tolerance…

Rings and Algebras · Mathematics 2026-02-17 Benyamin Ghojogh , Golbahar Amanpour

We consider a couple of versions of classical Kurosh problem (whether there is an infinite-dimensional algebraic algebra?) for varieties of linear multioperator algebras over a field. We show that, given an arbitrary signature, there is a…

Rings and Algebras · Mathematics 2009-06-01 Dmitri Piontkovski

An envelope in a category is a construction that generalizes the operations of "exterior completion", like completion of a locally convex space, or Stone-\v{C}ech compactification of a topological space, or universal enveloping algebra of a…

Functional Analysis · Mathematics 2021-09-01 Sergei Akbarov

Let $A$ be an algebra over an operad in a cocomplete closed symmetric monoidal category. We study the category of $A$-modules. We define certain symmetric product functors of such modules generalising the tensor product of modules over…

Quantum Algebra · Mathematics 2007-05-23 Marc A. Nieper-Wißkirchen

We prove the existence of Sullivan minimal models of operad algebras, for a quite wide family of operads in the category of complexes of vector spaces over a field of characteristic zero. Our construction is an adaptation of Sullivan's…

Algebraic Topology · Mathematics 2018-01-23 Joana Cirici , Agustí Roig

The goal of the present paper is to provide a detailed study of irreducible representations of the algebra generated by the symmetries of the generic quantum superintegrable system on the $d$-sphere. Appropriately normalized, the symmetry…

Mathematical Physics · Physics 2018-02-09 Plamen Iliev

Let $(M,\omega_M)$ be a monotone or negatively monotone symplectic manifold, or a Weinstein manifold. One can construct an "action" of $H^1(M,\mathbb{G}_m)$ on the Fukaya category (wrapped Fukaya category in the exact case) that reflects…

Symplectic Geometry · Mathematics 2021-09-28 Yusuf Barış Kartal

The logarithmic Kazhdan-Lusztig correspondence is a conjectural equivalence between braided tensor categories of representations of small quantum groups and representations of certain vertex operator algebras. In this article we prove such…

Quantum Algebra · Mathematics 2025-01-22 Simon D. Lentner

In this paper we introduce the notion of an operator category and two different models for homotopy theory of $\infty$-operads over an operator category -- one of which extends Lurie's theory of $\infty$-operads, the other of which is…

Algebraic Topology · Mathematics 2018-04-18 C. Barwick

We study 3d $\mathcal{N}=2$ supersymmetric gauge theories on closed oriented Seifert manifold---circle bundles over an orbifold Riemann surface---, with a gauge group G given by a product of simply-connected and/or unitary Lie groups. Our…

High Energy Physics - Theory · Physics 2018-11-14 Cyril Closset , Heeyeon Kim , Brian Willett

We give a framework for comparing on the one hand theories of n-categories that are weakly enriched operadically, and on the other hand n-categories given as algebras for a contractible globular operad. Examples of the former are the…

Category Theory · Mathematics 2008-10-05 Eugenia Cheng

We show how a novel construction of the sheaf of Cherednik algebras on a quotient orbifold Y=X/G by virtue of formal geometry in author's prior work leads to results for the sheaf of Cherednik algebra which until recently were viewed as…

Quantum Algebra · Mathematics 2021-10-04 Alexander Vitanov

Starting from a Unified Field Theory (UFT) proposed previously by the author, the possible fermionic representations arising from the same spacetime are considered from the algebraic and geometrical viewpoint. We specifically demonstrate in…

High Energy Physics - Theory · Physics 2015-03-17 Diego Julio Cirilo-Lombardo

For $G$ a connected, reductive group over an algebraically closed field $k$ of large characteristic, we use the canonical Springer isomorphism between the nilpotent variety of $\mathfrak{g}:=\mathrm{Lie}(G)$ and the unipotent variety of $G$…

Representation Theory · Mathematics 2014-12-16 Jared Warner

We prove that any flat G-bundle, where G is a complex connected reductive algebraic group, on the punctured disc admits the structure of an oper. This result is important in the local geometric Langlands correspondence proposed in…

Representation Theory · Mathematics 2010-01-28 Edward Frenkel , Xinwen Zhu