Zobrazeno 1 - 10
of 62
pro vyhledávání: '"J. M. Fernández Vilaboa"'
Publikováno v:
Journal of Algebra. 568:408-436
In this paper we prove that the category of finite quasigroupoids is equivalent to the one of pointed cosemisimple weak Hopf quasigroups over a given field K . As a consequence, if K is algebraically closed, we obtain that the categories of finite qu
Publikováno v:
Algebra Colloquium. 27:213-230
In this paper we give necessary and sufficient conditions for a comodule magma over a weak Hopf quasigroup to have a total integral, thus extending the theories developed in the Hopf algebra, weak Hopf algebra and non-associative Hopf algebra context
Publikováno v:
Journal of Pure and Applied Algebra. 224:586-609
In this paper we develop a descent theory for morphisms α between a monoid B and a unital magma A in a monoidal category with equalizers and coequalizers. We introduce the category of strong descent data for α and we prove that under faithfully fla
Publikováno v:
Bulletin of the Malaysian Mathematical Sciences Society. 43:3557-3615
In this paper, we introduce the theory of multiplication alteration by two-cocycles for non-associative structures like non-associative bimonoids with left (right) division. Also, we explore the connections between Yetter–Drinfeld modules for Hopf
Publikováno v:
Bulletin of the Malaysian Mathematical Sciences Society. 42:2701-2738
In this paper, we introduce the notion of weak nonassociative Doi–Hopf module and give the Fundamental Theorem of Hopf modules in this setting. Also, we prove that there exists a categorical equivalence that admits as particular instances the ones
Publikováno v:
Quaestiones Mathematicae. 40:251-275
In this paper, for 𝒞 a strict braided monoidal category with tensor product ⊗, we improve the definition of Hom-associative algebra by removing the multiplicativity condition of the automorphism α....
Publikováno v:
Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
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Let H be a cocommutative faithfully flat Hopf quasigroup in a strict symmetric monoidal category with equalizers. In this paper we introduce the notion of (strong) Galois H-object and we prove that the set of isomorphism classes of (strong) Galois H-
Publikováno v:
Colloquium Mathematicum. 148:231-246
In this paper we introduce the category of strong Hopf modules for a weak Hopf quasigroup H in a braided monoidal category. We also prove that this category is equivalent to the category of right modules over the image of the target morphism of H.
Publikováno v:
Communications in Algebra. 44:4519-4545
In this article, we give a criterion that characterizes equivalent weak crossed products. By duality, we obtain a similar result for weak crossed coproducts and, as a consequence, we find the conditions that assures the equivalence between two weak c
Publikováno v:
Mediterranean Journal of Mathematics. 13:3747-3764
In this paper, we show that weak Hopf (co)quasigroups can be characterized by a Galois-type condition. Taking into account that this notion generalizes the ones of Hopf (co)quasigroup and weak Hopf algebra, we obtain as a consequence the first fundam