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This paper provides an explicit cofibrant resolution of the operad encoding Batalin-Vilkovisky algebras. Thus it defines the notion of homotopy Batalin-Vilkovisky algebras with the required homotopy properties. To define this resolution we…

Quantum Algebra · Mathematics 2011-03-31 Imma Galvez-Carrillo , Andy Tonks , Bruno Vallette

This work addresses the homotopical analysis of enveloping operads in a general cofibrantly generated symmetric monoidal model category. We show the potential of this analysis by obtaining, in a uniform way, several central results…

Algebraic Topology · Mathematics 2025-10-31 Victor Carmona

Let $k$ be a field and $R$ a standard graded $k$-algebra. We denote by $\operatorname{H}^R$ the homology algebra of the Koszul complex on a minimal set of generators of the irrelevant ideal of $R$. We discuss the relationship between the…

This is the first paper of a series which aims to set up the cornerstones of Koszul duality for operads over operadic categories. To this end we single out additional properties of operadic categories under which the theory of quadratic…

Category Theory · Mathematics 2024-08-07 Michael Batanin , Martin Markl

We introduce a cup-cap duality in the Koszul calculus of N-homogeneous algebras. As an application, we prove that the graded symmetry of the Koszul cap product is a consequence of the graded commutativity of the Koszul cup product. We…

Representation Theory · Mathematics 2022-06-03 Roland Berger , Andrea Solotar

We establish model category structures on algebras and modules over operads in symmetric spectra, and study when a morphism of operads induces a Quillen equivalence between corresponding categories of algebras (resp. modules) over operads.

Algebraic Topology · Mathematics 2014-10-01 John E. Harper

This paper studies the operad of linearly compatible di-algebras, denoted by $As^{2}$, which is a nonsymmetric operad encoding the algebras with two binary operations that satisfy individual and sum associativity conditions. We also prove…

Rings and Algebras · Mathematics 2012-04-19 Yong Zhang

We give sufficient conditions for homotopical localization functors to preserve algebras over coloured operads in monoidal model categories. Our approach encompasses a number of previous results about preservation of structures under…

Algebraic Topology · Mathematics 2014-02-26 Carles Casacuberta , Javier J. Gutierrez , Ieke Moerdijk , Rainer M. Vogt

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

This is the second part of the paper (the first part is published in Jour. of AMS, vol.9, 1135--1170, q-alg/9508017). In the first part, we defined for every modular tensor category (MTC) inner products on the spaces of morphisms and proved…

q-alg · Mathematics 2008-11-26 Alexander Kirillov

We present a definition of homotopy algebra for an operad, and explore its consequences. The paper should be accessible to topologists, category theorists, and anyone acquainted with operads. After a review of operads and monoidal…

Quantum Algebra · Mathematics 2007-05-23 Tom Leinster

Let M be a bicomplete, closed symmetric monoidal category. Let P be an operad in M, i.e., a monoid in the category of symmetric sequences of objects in M, with its composition monoidal structure. Let R be a P-co-ring, i.e., a comonoid in…

Algebraic Topology · Mathematics 2007-05-23 Kathryn Hess , Paul-Eugene Parent , Jonathan Scott

We extend the bar-cobar adjunction to operads and properads, not necessarily augmented. Due to the default of augmentation, the objects of the dual category are endowed with a curvature. We handle the lack of augmentation by extending the…

K-Theory and Homology · Mathematics 2011-11-10 Joseph Hirsh , Joan Millès

The goal of this article is to make explicit a structured complex whose homology computes the cohomology of the p-profinite completion of the n-fold loop space of a sphere of dimension d=n-m<n. This complex is defined purely algebraically,…

Algebraic Topology · Mathematics 2017-04-06 Benoit Fresse

In the theory of binary quadratic operads, the white and black products of operads (called Manin products) play an important role. Given two such operads, the computation of either of their Manin products is a routine task. We present and…

Rings and Algebras · Mathematics 2012-04-05 Vsevolod Yu. Gubarev , Pavel S. Kolesnikov

Algebraic operads provide a powerful tool to understand the homotopy theory of the types of (co)algebras they encode. So far, the principal results and methods that this theory provides were only available in characteristic zero. The reason…

Algebraic Topology · Mathematics 2023-12-11 Brice Le Grignou , Victor Roca i Lucio

We establish that the dioperad $Y^{(n)}$, encoding bialgebras with a product of degree zero, a coproduct of degree $(1-n)$ and a rank three cyclic tensor, which satisfy a deformed version of the balanced infinitesimal bialgebra condition,…

Algebraic Topology · Mathematics 2026-04-09 Alex Takeda

In this paper, we introduce a new notion of algebra over a linear $\infty$-operad and a corresponding notion of coalgebra over an $\infty$-cooperad. We next extend the Koszul duality between linear $\infty$-operads and linear…

Category Theory · Mathematics 2026-02-10 Eric Hoffbeck , Ieke Moerdijk

We study cohomology theories of strongly homotopy algebras, namely $A_\infty, C_\infty$ and $L_\infty$-algebras and establish the Hodge decomposition of Hochschild and cyclic cohomology of $C_\infty$-algebras thus generalising previous work…

Quantum Algebra · Mathematics 2007-05-23 Alastair Hamilton , Andrey Lazarev

In the present paper the cyclic homology functor from the category of $A_\infty$-algebras over any commutative unital ring $K$ to the category of graded $K$-modules is constructed. Further, it is showed that this functor sends homotopy…

Algebraic Topology · Mathematics 2019-05-28 S. V. Lapin