![Foto de EMILIO](/img/nophoto.png)
EMILIO
VILLANUEVA NOVOA
Researcher in the period 1983-2019
Publications (12) EMILIO VILLANUEVA NOVOA publications
2013
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The antipode and the (co)invariants of a finite Hopf (co)quasigroup
Applied Categorical Structures, Vol. 21, Núm. 3, pp. 237-247
2004
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Π-twist and orientability in braided categories
Journal of Pure and Applied Algebra, Vol. 188, Núm. 1-3, pp. 7-32
2003
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Weak Hopf algebras with projection and weak smash bialgebra structures
Journal of Algebra, Vol. 269, Núm. 2, pp. 701-725
2002
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About the naturality of Beattie's decomposition theorem with respect to a change of Hopf algebras
Cahiers de Topologie et Géométrie Différentielle Catégoriques, Vol. 43, Núm. 1, pp. 2-18
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The Brauer group of central separable monoids in a braided monoidal category
Algebra Colloquium, Vol. 9, Núm. 4, pp. 399-416
1998
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A Picard-Brauer Five Term Exact Sequence for Braided Categories
Rings, Hopf algebras, and Brauer groups: proceedings of the fourth week on algebra and algebraic geometry (Marcel Dekker), pp. 11-42
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Extension, restriction and Picard-Brauer exact sequences for torsion theories
Communications in Algebra, Vol. 26, Núm. 1, pp. 309-320
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The exact sequence Pic(C) → Pic(C′) → K1A(F) → B(C) → B(C′) for a monoidal functor between closed categories
Communications in Algebra, Vol. 26, Núm. 9, pp. 2727-2743
1996
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G-compatible torsion theories. The sheaves Pic(σ) and B (σ)
Communications in Algebra, Vol. 24, Núm. 2, pp. 573-604
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The Picard-Brauer five term exact sequence for a cocommutative finite Hopf algebra
Journal of Algebra, Vol. 186, Núm. 2, pp. 384-400
1992
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Gabriel filters in Grothendieck categories
Publicacions matematiques, Vol. 36, Núm. 2, pp. 673-683
1990
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Algebra and geometry: proceedings of the II SBWAG : Santiago de Compostela, 1989
Universidad de Santiago de Compostela