POSITSELSKI, Leonid and Jiří ROSICKÝ. Covers, envelopes, and cotorsion theories in locally presentable abelian categories and contramodule categories. Journal of Algebra. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2017, vol. 483, August, p. 83-128. ISSN 0021-8693. Available from: https://dx.doi.org/10.1016/j.jalgebra.2017.03.029.
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Basic information
Original name Covers, envelopes, and cotorsion theories in locally presentable abelian categories and contramodule categories
Authors POSITSELSKI, Leonid (376 Israel) and Jiří ROSICKÝ (203 Czech Republic, guarantor, belonging to the institution).
Edition Journal of Algebra, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2017, 0021-8693.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10101 Pure mathematics
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 0.675
RIV identification code RIV/00216224:14310/17:00094722
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1016/j.jalgebra.2017.03.029
UT WoS 000402221000005
Keywords in English covers;envelopes;cotorsion theories;locally presentable abelian categories;contramodules
Tags NZ, rivok
Changed by Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 30/3/2018 22:35.
Abstract
We prove general results about completeness of cotorsion theories and existence of covers and envelopes in locally presentable abelian categories, extending the well-established theory for module categories and Grothendieck categories. These results are then applied to the categories of contramodules over topological rings, which provide examples and counterexamples.
Links
GBP201/12/G028, research and development projectName: Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku
Investor: Czech Science Foundation
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