Recent Submissions

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    Generalized Sasakian Space Forms Which Are Realized as Real Hypersurfaces in Complex Space Forms 

    Carriazo Rubio, Alfonso; Cho, Jong Taek; Martín Molina, Verónica (MDPI, 2020-05-29)
    We prove a classification theorem of the generalized Sasakian space forms which are realized as real hypersurfaces in complex space forms.
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    Metric f-Contact Manifolds Satisfying the (κ, μ)-Nullity Condition 

    Carriazo Rubio, Alfonso; Fernández Fernández, Luis Manuel; Loiudice, Eugenia (MDPI, 2020-06-02)
    We prove that if the f-sectional curvature at any point of a (2n+s) -dimensional metric f-contact manifold satisfying the ...
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    Simplicial Lusternik-Schnirelmann category 

    Fernández Ternero, Desamparados; Macías Virgós, Enrique; Minuz, Erica; Vilches Alarcón, José Antonio (Universidad Autónoma de Barcelona, 2019-01-01)
    The simplicial LS-category of a nite abstract simplicial complex is a new invariant of the strong homotopy type, de ned ...
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    Optimal inequalities, contact delta-invariants and their applications 

    Chen, Bang-Yen; Martín Molina, Verónica (Malaysian Mathematical Sciences Society, 2013)
    Associated with a k-tuple (n1, . . . , nk) ∈ S(2n + 1) with n ≥ 1, we define a contact δ-invariant, δc (n1, . . . , nk), ...
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    Bochner and conformal flatness on normal complex contact metric manifolds 

    David E. Blair; Martín Molina, Verónica (Springer, 2010-10-10)
    We will prove that normal complex contact metric manifolds that are Bochner flat must have constant holomorphic sectional ...
  • PhD Thesis
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    Subvariedades slant en s-variedades 

    Hans Uber, María Belén (2005-07-15)
    Las subvariedades slant constituyen un tipo importante de subvariedades, tanto en la Geometría Compleja como en la Geometría ...
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    A closed form for slant submanifolds of generalized Sasakian space forms 

    Alegre Rueda, Pablo Sebastián; Barrera López, Joaquín; Carriazo Rubio, Alfonso (MDPI, 2019-12-13)
    The Maslov form is a closed form for a Lagrangian submanifold of Cm, and it is a conformal form if and only if M satisfies ...
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    An Application of Total-Colored Graphs to Describe Mutations in Non-Mendelian Genetics 

    Falcón Ganfornina, Raúl Manuel; Falcón Ganfornina, Óscar Jesús; Núñez Valdés, Juan (MDPI, 2019)
    Any gene mutation during the mitotic cell cycle of a eukaryotic cell can be algebraically represented by an isotopism of ...
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    Bi-slant submanifolds of para Hermitian manifolds 

    Alegre Rueda, Pablo Sebastián; Carriazo Rubio, Alfonso (MDPI, 2019-07-11)
    In this paper, we introduce the notion of bi-slant submanifolds of a para Hermitian manifold. They naturally englobe CR, semi-slant, and hemi-slant submanifolds. We study their first properties and present a whole gallery of examples.
  • Presentation
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    The curvature tensor of almost cosymplectic and almost Kenmotsu (κ,μ,ν)-spaces 

    Carriazo Rubio, Alfonso; Martín Molina, Verónica (2013)
    We study the Riemann curvature tensor of (κ,μ, ν)-spaces when they have almost cosymplectic and almost Kenmotsu structures, ...
  • PhD Thesis
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    Invariant functions and contractions of algebras. 

    Escobar Rica, Jose María (2019-04-08)
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    The curvature tensor of almost cosymplectic and almost Kenmotsu ( κ, μ, ν ) -space 

    Carriazo Rubio, Alfonso; Martín Molina, Verónica (Springer, 2013-08)
    We study the Riemann curvature tensor of (κ, µ, ν)-spaces when they have almost cosymplectic and almost Kenmotsu structures, ...
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    Un ejemplo de teoría de bordismo equivalente al PL-bordismo 

    Quintero Toscano, Antonio Rafael (Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza, 1983)
    In this paper we define the CPL-manifolds and we prove, by using a desingularization procedure, that these objects give a ...
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    Cellular covers of local groups 

    Flores Díaz, Ramón Jesús; Scherer, Jérôme (Springer, 2018-12)
    We prove that, in the category of groups, the composition of a cellularization and a localization functor need not be idempotent. This provides a negative answer to a question of Emmanuel Dror Farjoun.
  • PhD Thesis
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    La forma de Maslov de las subvariedades Slant. 

    Barrera López, Joaquín (2018-11-30)
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    Some special types of developable ruled surface 

    Alegre Rueda, Pablo Sebastián; Arslan, Kadri; Carriazo Rubio, Alfonso; Murathan, Cengizhan; Özturk, Günay (Hacettepe University (Faculty of Science), 2010)
    In this study we consider the focal curve Cγ of a space curve γ and its focal curvatures. We characterize some special ...
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    On certain anti-invariant submanifolds of an S-manifold 

    Cabrerizo Jaraíz, José Luis; Fernández Fernández, Luis Manuel (Sociedade Portuguesa de Matemática, 1993)
    In this paper, the geometry of certain anti-invariant submanifolds of an S-manifold, namely those which are normal to the structure vector fields, is studied.
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    CR-products of S-manifolds 

    Fernández Fernández, Luis Manuel (Sociedade Portuguesa de Matemática, 1990)
    In this paper certain CR-submanifolds namely the CR-products, are studied. A characterization theorem is given and the case of CR-products of S-manifolds whose invariant f-sectional curvature is constant, is investigated.
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    Irreducible triangulations of the once-punctured torus 

    Lawrecenko, Serge; Sulanke, Thom; Villar Liñán, María Trinidad; Zgonnik, Lyudmila Vladimirovna; Chávez de Diego, María José (Sobolev Institute of Mathematics, 2018)
    A triangulation of a surface with fixed topological type is called irreducible if no edge can be contracted to a vertex ...
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    A historical perspective of the theory of isotopisms 

    Falcón Ganfornina, Raúl Manuel; Falcón Ganfornina, Óscar Jesús; Núñez Valdés, Juan (MDPI, 2018-08-03)
    In the middle of the twentieth century, Albert and Bruck introduced the theory of isotopisms of non-associative algebras ...

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