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We associate a bivariant theory to any suitable oriented Borel-Moore homology theory on the category of algebraic schemes or the category of algebraic G-schemes. Applying this to the theory of algebraic cobordism yields operational…

Algebraic Geometry · Mathematics 2016-01-20 José Luis González , Kalle Karu

Alain Bruguieres, in his talk [1], announced his work [2] with Alexis Virelizier and the second author which dealt with lifting closed structure on a monoidal category to the category of Eilenberg-Moore algebras for an opmonoidal monad. Our…

Category Theory · Mathematics 2011-04-14 Dimitri Chikhladze , Stephen Lack , Ross Street

Lax monoidal powerset-enriched monads yield a monoidal structure on the category of monoids in the Kleisli category of a monad. Exponentiable objects in this category are identified as those Kleisli monoids with algebraic structure. This…

Category Theory · Mathematics 2013-08-08 Dirk Hofmann , Frédéric Mynard , Gavin J. Seal

This preprint contains a part of the results of our earlier preprint arXiv:0907.3335v2 presented in a form suitable for journal publication. It covers a construction of a 2-fold monoidal structure on the category of tetramodules, with all…

Category Theory · Mathematics 2012-02-10 Boris Shoikhet

We consider the tube algebra of a spherical semisimple multitensor category $\mathcal{X}$, and construct a braided monoidal structure with twist for its representations. We further show that this category is braided tensor equivalent with…

Quantum Algebra · Mathematics 2025-11-12 David Jaklitsch , Makoto Yamashita

We study monoidal categories that enjoy a certain weakening of the rigidity property, namely, the existence of a dualizing object in the sense of Grothendieck and Verdier. We call them Grothendieck-Verdier categories. Notable examples…

Quantum Algebra · Mathematics 2012-04-17 Mitya Boyarchenko , Vladimir Drinfeld

Generalising a result for Hopf algebras, we not only define the four possible types of Hopf modules in the bialgebroid setting but also yield the notion of two-sided two-cosided Hopf modules, also known as Hopf bimodules or tetramodules, in…

Quantum Algebra · Mathematics 2025-10-09 Sophie Chemla , Niels Kowalzig

In [arXiv:1509.02937], the notion of a module tensor category was introduced as a braided monoidal central functor $F\colon \mathcal{V}\longrightarrow \mathcal{T}$ from a braided monoidal category $\mathcal{V}$ to a monoidal category…

Category Theory · Mathematics 2023-11-22 Sebastian Heinrich

We introduce a notion of duality for a Lie-Rinehart algebra giving certain bilinear pairings in its cohomology generalizing the usual notions of Poincar\'e duality in Lie algebra cohomology and de Rham cohomology. We show that the duality…

dg-ga · Mathematics 2008-02-03 Johannes Huebschmann

A PROP is a symmetric monoidal category, whose set of objects is the set of natural numbers and on objects the monoidal structure is given by the addition. An algebra over a PROP is a symmetric strict monoidal functor to the tensor category…

Category Theory · Mathematics 2007-05-23 Teimuraz Pirashvili

The category-valued trace assigns to a bimodule category over a linear monoidal category a linear category. It generalizes Drinfeld centers of monoidal categories and the relative Deligne product of bimodule categories. In this article, we…

Quantum Algebra · Mathematics 2019-10-22 Vincent Koppen

Linearly distributive categories were introduced to model the tensor/par fragment of linear logic, without resorting to the use of negation. Linear bicategories are the bicategorical version of linearly distributive categories. Essentially,…

Category Theory · Mathematics 2026-01-30 Richard Blute , Rose Kudzman-Blais , Susan Niefield

The purpose of this paper is to develop a theory of bimonads and Hopf monads on arbitrary categories thus providing the possibility to transfer the essentials of the theory of Hopf algebras in vector spaces to more general settings. There…

Quantum Algebra · Mathematics 2008-06-11 Bachuki Mesablishvili , Robert Wisbauer

In this paper we show that to a unital associative algebra object (resp. co-unital co-associative co-algebra object) of any abelian monoidal category $\mathcal{C}$ endowed with a symmetric $2$-trace, one can attach a cyclic (resp. cocyclic)…

K-Theory and Homology · Mathematics 2019-08-15 Mohammad Hassanzadeh , Masoud Khalkhali , Ilya Shapiro

Given a Hopf algebra in a symmetric monoidal category with duals, the category of modules inherits the structure of a monoidal category with duals. If the notion of algebra is replaced with that of monad on a monoidal category with duals…

Category Theory · Mathematics 2010-03-15 Simon Willerton

We introduce a tree structure for the iterates of symmetric bimodal maps and identify a subset which we prove to be isomorphic to the family of unimodal maps. This subset is used as a second factor for a $\ast $-product that we define in…

Dynamical Systems · Mathematics 2007-05-23 J. P. Lampreia , R. Severino , J. Sousa Ramos

Consider a monoidal category which is at the same time abelian with enough projectives and such that projectives are flat on the right. We show that there is a $B_{\infty}$-algebra which is $A_{\infty}$-quasi-isomorphic to the derived…

K-Theory and Homology · Mathematics 2019-07-16 Wendy Lowen , Michel Van den Bergh

This paper introduces an inherently strict presentation of categories with products, coproducts, or symmetric monoidal products that is inspired by file systems and directories. Rather than using nested binary tuples to combine objects or…

Category Theory · Mathematics 2025-04-30 Owen Lynch , Markus Lohmayer

Let $\mathcal{S}$ be a small category admitting binary products. We show that the whole theory of monoidal $\mathcal{S}$-fibered categories, which is customarily formulated in terms of the usual internal tensor product, can be rephrased…

Category Theory · Mathematics 2024-09-13 Luca Terenzi

Categories, n-categories, double categories, and multicategories (among others) all have similar definitions as collections of cells with composition operations. We give an explicit description of the information required to define any…

Category Theory · Mathematics 2025-06-03 Brandon Shapiro