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    Listar AGT - Artículos por título 
    •   RIUMA Principal
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    • Álgebra, Geometría y Topología - (AGT)
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    •   RIUMA Principal
    • Investigación
    • Álgebra, Geometría y Topología - (AGT)
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    • Listar AGT - Artículos por título

    Listar AGT - Artículos por título

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      • Classification of fiber sequences with a prescribed holonomy action 

        Fuentes Rumí, Mario (Elsevier, 2022-08-01)
        We define H-fibration sequences as fibrations where the holonomy action of the fundamental group of the base on the fiber lies in a given subgroup H of E(F ), where E(F ) is the homotopy automorphism group of the fiber. ...
      • Contact structures on null hypersurfaces 

        Atindogbé, Cyriaque; Gutiérrez-López, ManuelAutoridad Universidad de Málaga; Hounnonkpe, Raymond; Olea, Benjamín (Elsevier, 2022-08)
        The aim of this paper is to show how we can induce contact structures, contact metric structures and Sasaki structures on a null hypersurface from a rigging vector field. We give several explicit examples of this construction ...
      • Decompositions of endomorphisms into a sum of roots of the unity and nilpotent endomorphisms of fixed nilpotence. 

        Danchev, Peter; García González, Esther; Gómez-Lozano, Miguel ÁngelAutoridad Universidad de Málaga (Elsevier, 2023-07-10)
        For n ≥ 2 and fixed k ≥ 1, we study when an endomorphism f of Fn, where F is an arbitrary field, can be decomposed as t + m where t is a root of the unity endomorphism and m is a nilpotent endomorphism with mk = 0. For ...
      • Decompositions of matrices into a sum of invertible matrices and matrices of fixed nilpotence. 

        Danchev, Peter; García González, Esther; Gómez-Lozano, Miguel ÁngelAutoridad Universidad de Málaga (International Linear Algebra Society, 2023-08-24)
        For any n ≥ 2 and fixed k ≥ 1, we give necessary and sufficient conditions for an arbitrary nonzero square matrix in the matrix ring Mn(F) to be written as a sum of an invertible matrix U and a nilpotent matrix N with Nk ...
      • Gradings induced by nilpotent elements. 

        García González, Esther; Gómez-Lozano, Miguel ÁngelAutoridad Universidad de Málaga; Muñoz-Alcázar, Rubén JoséAutoridad Universidad de Málaga; Vera de Salas, Guillermo (Elsevier, 2023)
        An element a is nilpotent last-regular if it is nilpotent and its last nonzero power is von Neumann regular. In this paper we show that any nilpotent last-regular element a in an associative algebra R over a ring of scalars ...
      • Groups as automorphisms of dessins d’enfants 

        Cañas Muñoz, Alejandro; Hidalgo, Rubén A.; Turiel-Sandín, Francisco JavierAutoridad Universidad de Málaga; Viruel-Arbaizar, Antonio ÁngelAutoridad Universidad de Málaga (Springer, 2022-08-01)
        It is known that every finite group can be represented as the full group of automorphisms of a suitable compact dessin d’enfant. In this paper, we give a constructive and easy proof that the same holds for any countable ...
      • Invariant ideals in Leavitt path algebras. 

        Gil-Canto, CristóbalAutoridad Universidad de Málaga; Martín-Barquero, DoloresAutoridad Universidad de Málaga; Martín-González, CándidoAutoridad Universidad de Málaga; Martín-González (Universitat Autònoma de Barcelona, Departament de Matemàtiques. Revista: Publications Matematiques, 2020-06-23)
        It is known that the ideals of a Leavitt path algebra LK (E) generated by Pl(E), by Pc(E) or by Pec(E) are invariant under isomorphism. Though the ideal generated by Pb∞ (E) is not invariant we find its “natural” replacement ...
      • Lie models of homotopy automorphism monoids and classifying fibrations 

        Félix, Yves; Fuentes Rumí, Mario; Murillo-Mas, AnicetoAutoridad Universidad de Málaga (Elsevier, 2022-06-25)
        Given X a finite nilpotent simplicial set, consider the classifying fibrations X → B aut∗ G(X) → B autG(X) and X → Z → B aut∗ π (X) where G and π denote, respectively, subgroups of the free and pointed homotopy classes ...
      • Tensor Product of Evolution Algebras 

        Cabrera-Casado, YolandaAutoridad Universidad de Málaga; Martin-Barquero, DoloresAutoridad Universidad de Málaga; Martin-Gonzalez, CandidoAutoridad Universidad de Málaga; Tocino-Sánchez, AliciaAutoridad Universidad de Málaga (Springer Nature, 2022-12-28)
        The starting point of this work is the fact that the class of evolution algebras over a fixed field is closed under tensor product. We prove that, under certain conditions, the tensor product is an evolution algebra if and ...
      • The Milnor-Moore theorem for L∞ algebras in rational homotopy theory 

        Moreno-Fernández, José ManuelAutoridad Universidad de Málaga (Springer, 2021-09-20)
        We give a construction of the universal enveloping A∞ algebra of a given L∞ algebra, alternative to the already existing versions. As applications, we derive a higher homotopy algebras version of the classical Milnor-Moore ...
      • Two-dimensional perfect evolution algebras over domains. 

        Cabrera-Casado, YolandaAutoridad Universidad de Málaga; Martin-Barquero, DoloresAutoridad Universidad de Málaga; Martin-Gonzalez, CandidoAutoridad Universidad de Málaga (Springer Nature, 2023-01-23)
        We will study evolution algebras A that are free modules of dimension two over domains. We start by making some general considerations about algebras over domains: They are sandwiched between a certain essential D-submodule ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA