Results 1 to 10 of about 165,978,407 (130)

Morphisms between two constructions of Witt vectors of non-commutative rings

Proceedings of the American Mathematical Society, 2020
Let A A be any unital associative, possibly non-commutative ring and let
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Localization and Flatness in Quantale Theory

Mathematics
The study of flat ring morphisms is an important theme in commutative algebra. The purpose of this article is to develop an abstract theory of flatness in the framework of coherent quantales.
George Georgescu
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Admissible Semimorphisms of icl-Groupoids

Mathematics
If M is an algebra in a semidegenerate congruence-modular variety V, then the set Con(M) of congruences of M is an integral complete l-groupoid (= icl-groupoid). For any morphism f:M→N of V, consider the map f•:Con(M)→Con(N), where, for each congruence ε
George Georgescu
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Pure morphisms of commutative rings are effective descent morphisms for modules – a new proof

Theory and Applications of Categories, 2000
The purpose of this paper is to give a new proof of the Joyal-Tierney theorem (unpublished), which asserts that a morphism \(f:R\rightarrow S\) of commutative rings is an effective descent morphism for modules if and only if \(f\) is pure as a morphism of \(R\)-modules.
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On some properties of puremorphisms of commutative rings

Theory and Applications of Categories, 2002
Summary: We prove that pure morphisms of commutative rings are effective \(\mathcal A\)-descent morphisms where \(\mathcal A\) is a \((\mathcal{COMMUTATIVE\;RINGS})^{\text{op}}\)-indexed category given by (i) finitely generated modules, or (ii) flat modules, or (iii) finitely generated flat modules, or (iv) finitely generated projective modules.
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Topological Noetherianity of polynomial functors II: base rings with Noetherian spectrum. [PDF]

Math Ann, 2023
Bik A, Danelon A, Draisma J.
europepmc   +1 more source

Kan Extensions are Partial Colimits. [PDF]

Appl Categ Struct, 2022
Perrone P, Tholen W.
europepmc   +1 more source

A Formalization of the Smith Normal Form in Higher-Order Logic. [PDF]

J Autom Reason, 2022
Divasón J, Thiemann R.
europepmc   +1 more source

p-adic vertex operator algebras. [PDF]

Res Number Theory, 2023
Franc C, Mason G.
europepmc   +1 more source

Equivariant multiplicities via representations of quantum affine algebras. [PDF]

Sel Math New Ser, 2023
Casbi E, Li JR.
europepmc   +1 more source