Results 11 to 20 of about 1,637,092 (305)

Calculus of functors and model categories

open access: bronzeAdvances in Mathematics, 2007
22 pages. Exposition is substantially improved.
Georg Biedermann   +2 more
openalex   +3 more sources

The tangent functor category revisited

open access: yesIndagationes Mathematicae (Proceedings), 1986
L. Moerdijk, G. Reyes
semanticscholar   +3 more sources

Categories and Functors [PDF]

open access: yesPure and Applied Mathematics, 1970
In Chapter I we discussed various algebraic structures (rings, abelian groups, modules) and their appropriate transformations (homomorphisms). We also saw how certain constructions (for example, the formation of HomΛ(A, B) for given Λ-modules A, B) produced new structures out of given structures.
Peter Hilton   +2 more
openaire   +4 more sources

t-Structures with Grothendieck hearts via functor categories [PDF]

open access: yesSelecta Mathematica, 2020
We study when the heart of a t -structure in a triangulated category $$\mathcal {D}$$ D with coproducts is AB5 or a Grothendieck category. If $$\mathcal {D}$$ D satisfies Brown representability, a t -structure has an AB5 heart with an injective ...
Manuel Saor'in, Jan Št’ovíček
semanticscholar   +1 more source

Strongly Complete Logics for Coalgebras [PDF]

open access: yesLogical Methods in Computer Science, 2012
Coalgebras for a functor model different types of transition systems in a uniform way. This paper focuses on a uniform account of finitary logics for set-based coalgebras.
Alexander Kurz, Jiri Rosicky
doaj   +1 more source

On $\ast$-measure monads on the category of ultrametric spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The functor of $\ast$-measures of compact support on the category of ultrametric spaces and non-expanding maps is introduced in the previous publication of the authors.
Kh.O. Sukhorukova, M.M. Zarichnyi
doaj   +1 more source

A Category Theoretic Interpretation of Gandy's Principles for Mechanisms [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
Based on Gandy's principles for models of computation we give category-theoretic axioms describing locally deterministic updates to finite objects. Rather than fixing a particular category of states, we describe what properties such a category should ...
Joseph Razavi, Andrea Schalk
doaj   +1 more source

A Shortcut from Categorical Quantum Theory to Convex Operational Theories [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
This paper charts a very direct path between the categorical approach to quantum mechanics, due to Abramsky and Coecke, and the older convex-operational approach based on ordered vector spaces (recently reincarnated as "generalized probabilistic theories"
Alexander Wilce
doaj   +1 more source

Enriched functor categories for functor calculus

open access: yesTopology and its Applications, 2022
In this paper we present background results in enriched category theory and enriched model category theory necessary for developing model categories of enriched functors suitable for doing functor calculus.
Bandklayder, L.   +4 more
openaire   +3 more sources

Gabriel localization in functor categories [PDF]

open access: yesCommunications in Algebra, 2021
P. Gabriel showed that for an unital ring $R$, there exists a bijective correspondence between the set of Gabriel filters of $R$ and the set of Giraud subcategories of $\mathrm{Mod}(R)$ (see \cite[Lemme 1]{Gabriel1} on page 412). In this paper we prove analogous of Gabriel's result: for a small preadditive category $\mathcal{C}$, there exists a ...
Valente Santiago-Vargas   +2 more
openaire   +3 more sources

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