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pro vyhledávání: '"Catarina Santa-clara"'
Surveying the most influential developments in the field, this proceedings reviews the latest research on algebras and their representations, commutative and non-commutative rings, modules, conformal algebras, and torsion theories.The volume collects
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Submitted by Fátima Piedade (fpiedade@sa.isel.pt) on 2016-04-15T16:35:26Z No. of bitstreams: 1 The semigroup ring of a restriction semigroup with an inverse skeleton.pdf: 282206 bytes, checksum: bca554f5eb8203ea098ae18b46217f63 (MD5) Made available
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
There exist striking analogies in the behaviour of eigenvalues of Hermitian compact operators, singular values of compact operators and invariant factors of homomorphisms of modules over principal ideal domains, namely diagonalization theorems, inter
Autor:
Catarina Santa-Clara
Publikováno v:
Glasgow Mathematical Journal. 52:1-5
The conference ‘Rings and Modules’, in honour of Patrick F. Smith's 65th birthday and on the occasion of his retirement, gathered in Lisbon 67 of Patrick Smith's students, co-authors and friends from all over the world. The conference was held at
Autor:
Patrick F. Smith, Catarina Santa-Clara
Publikováno v:
Archiv der Mathematik. 82:8-12
Let R be a (commutative) Dedekind domain and let the R-module M be a direct product of simple R-modules. Then any homomorphism from a closed submodule K of M to M can be lifted to M.
Autor:
Catarina Santa-Clara, Patrick F. Smith
Publikováno v:
Algebra and Its Applications. :487-499
Publikováno v:
Journal of Algebra. 205(2):617-625
Two elements x and y of a partially ordered set P are said to be disjoint if there is no z ∈ P such that z ≤ x and z ≤ y . Denote by δ( P ) the supremum of the cardinals κ such that P contains a subset of pairwise disjoint elements with cardi
Autor:
Catarina Santa-Clara, Patrick F. Smith
Publikováno v:
Communications in Algebra. 24:3641-3651
It is proved that, if R is a right Noetherian ringM 1 is an injective right R-module and M 2 is a semisimple right R-module, then the right R-module M 1 + M 2 is extending if and only if M 2 is (M 1/Soc(M 1))-injective.
Autor:
Catarina Santa-Clara
Publikováno v:
Contemporary Mathematics ISBN: 9780821819500
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0f6e1cff851a9e5acbed203626d97cb
https://doi.org/10.1090/conm/259
https://doi.org/10.1090/conm/259
Publikováno v:
Journal of Algebra. (2):548-557
Let R be a ring. An R-module X is called c-injective if, for every closed submodule L of every R-module M, every homomorphism from L to X lifts to M. It is proved that if R is a Dedekind domain then an R-module X is c-injective if and only if X is is