Results 11 to 20 of about 5,995,783 (336)

A category of quantum categories [PDF]

open access: yes, 2009
Quantum categories were introduced in [4] as generalizations of both bi(co)algebroids and small categories. We clarify details of that work. In particular, we show explicitly how the monadic definition of a quantum category unpacks to a set of axioms close to the definitions of a bialgebroid in the Hopf algebraic literature.
Chikhladze, Dimitri
openaire   +6 more sources

Derived categories of NDG categories [PDF]

open access: yesJournal of Homotopy and Related Structures, 2021
We study $N$-differential graded ($NDG$) categories and their the derived categories. First, we introduce $N$-differential modules over an $NDG$ category $\mathcal{A}$. Then we show that the category $\mathsf{C}_{Ndg}(\mathcal{A})$ of $N$-differential $\mathcal{A}$-modules is a Frobenius category, and that its homotopy category $\mathsf{K}_{Ndg ...
Hiroshi Nagase, Jun-ichi Miyachi
openaire   +3 more sources

The dendroidal category is a test category [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 2018
AbstractWe prove that the category of trees Ω is a test category in the sense of Grothendieck. This implies that the category of dendroidal sets is endowed with the structure of a model category Quillen-equivalent to spaces. We show that this model category structure, up to a change of cofibrations, can be obtained as an explicit left Bousfield ...
Ara, Dimitri   +2 more
openaire   +7 more sources

Category Algebras and States on Categories [PDF]

open access: yesSymmetry, 2021
The purpose of this paper is to build a new bridge between category theory and a generalized probability theory known as noncommutative probability or quantum probability, which was originated as a mathematical framework for quantum theory, in terms of states as linear functional defined on category algebras.
openaire   +2 more sources

The Heisenberg category of a category

open access: yes, 2021
Starting with a k-linear or DG category admitting a (homotopy) Serre functor, we construct a k-linear or DG 2-category categorifying the Heisenberg algebra of the numerical K-group of the original category. We also define a 2-categorical analogue of the Fock space representation of the Heisenberg algebra.
Gyenge, Ádám   +2 more
openaire   +2 more sources

Integral categories and calculus categories [PDF]

open access: yesMathematical Structures in Computer Science, 2018
Differential categories are now an established abstract setting for differentiation. However, not much attention has been given to the process which is inverse to differentiation: integration. This paper presents the parallel development for integration by axiomatizing an integral transformation, sA: !A → !A ⊗ A, in a symmetric monoidal category with a
Cockett, Robin, Lemay, Jean-Simon
openaire   +6 more sources

A model category structure on the category of simplicial categories [PDF]

open access: yesTransactions of the American Mathematical Society, 2006
In this paper we put a cofibrantly generated model category structure on the category of small simplicial categories. The weak equivalences are a simplicial analogue of the notion of equivalence of categories.
Julia E. Bergner, Julia E. Bergner
openaire   +3 more sources

Subfactor Categories of Triangulated Categories [PDF]

open access: yesCommunications in Algebra, 2015
15 ...
Baiyu Ouyang, Panyue Zhou, Jinde Xu
openaire   +3 more sources

Displayed Categories [PDF]

open access: yesLogical Methods in Computer Science, 2019
We introduce and develop the notion of *displayed categories*. A displayed category over a category C is equivalent to "a category D and functor F : D --> C", but instead of having a single collection of "objects of D" with a map to the objects of C, the objects are given as a family indexed by objects of C,
Ahrens, Benedikt   +1 more
openaire   +7 more sources

Categories

open access: yesAustralasian Journal of Plastic Surgery, 2022
Nowhere are the limitations of categorisation more apparent than in our outdated and overly simplistic surgical elective surgery categories, writes Mark Lee.
Mark Lee, Mark Ashton
openaire   +2 more sources

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