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Model Categories [PDF]

open access: hybrid, 2022
AbstractIn [123] Quillen proposed an axiomatic framework for homotopy theory through the notion of a model structure on a category. Such a structure consists of three distinguished classes of morphisms, calledweak equivalences, fibrations, and cofibrations, required to satisfy several axioms reminiscent of the properties of the corresponding notions in
Gijs Heuts, Ieke Moerdijk
openalex   +2 more sources

Homotopical categories: from model categories to $(\infty,1)$-categories [PDF]

open access: green, 2019
This chapter, written for "Stable categories and structured ring spectra," edited by Andrew J. Blumberg, Teena Gerhardt, and Michael A. Hill, surveys the history of homotopical categories, from Gabriel and Zisman's categories of fractions to Quillen's model categories, through Dwyer and Kan's simplicial localizations and culminating in $(\infty,1 ...
Emily Riehl
openalex   +3 more sources

Category of Situationality in Narrative Model of Artistic and Legal Discourse

open access: goldНаучный диалог, 2022
The subject of research in this article is the specificity of the category of discursive situationality, which determined the problematics of the novel “Bleak House” by Ch. Dickens (1853).
E. V. Dziuba, I. Yu. Ryabova
doaj   +3 more sources

LEGAL MODEL OF STATE COERCION AS TO A SPECIAL CATEGORY OF PERSONS [PDF]

open access: diamondRussian Journal of Economics and Law, 2016
Objective: to develop a legal model of state coercion against individuals with mental disorders.Methods: dialectical method, analysis, synthesis, description, explanation.Results: identifying features of the semantic and meaningful understanding of state
T. M. Sekretareva
doaj   +2 more sources

Model characteristics of special physical preparedness of Juvenile category athletes in acrobatic rock'n'roll

open access: greenСлобожанський науково-спортивний вісник, 2018
Purpose: develop model characteristics of special physical readiness of Juvenile category athletes in acrobatic rock'n'roll. Material & Methods: theoretical analysis and synthesis of data of special scientific and methodical literature, pedagogical ...
Serhii Humeniuk
doaj   +3 more sources

Six model categories for directed homotopy [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2021
We construct a q-model structure, an h-model structure and an m-model structure on multipointed $d$-spaces and on flows. The two q-model structures are combinatorial and left determined and they coincide with the combinatorial model structures already ...
Philippe Gaucher
doaj   +1 more source

Arrow categories of monoidal model categories [PDF]

open access: yesMATHEMATICA SCANDINAVICA, 2019
We prove that the arrow category of a monoidal model category, equipped with the pushout product monoidal structure and the projective model structure, is a monoidal model category. This answers a question posed by Mark Hovey, in the course of his work on Smith ideals.
White, David, Yau, Donald
openaire   +2 more sources

Comparison theorems for Kan, faintly universal and strongly universal derived functors [PDF]

open access: yesSurveys in Mathematics and its Applications, 2022
We distinguish between faint, weak, strong and strict localizations of categories at morphism families and show that this framework captures the different types of derived functors that are considered in the literature.
Alisa Govzmann   +2 more
doaj  

A unified representation and transformation of multi-model data using category theory

open access: yesJournal of Big Data, 2022
The support for multi-model data has become a standard for most of the existing DBMSs. However, the step from a conceptual (e.g., ER or UML) schema to a logical multi-model schema of a particular DBMS is not straightforward.
Pavel Koupil, Irena Holubová
doaj   +1 more source

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