Recent Submissions

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    Totally umbilical disks and applications to surfaces in three-dimensional homogeneous spaces  [Article]

    Espinar, José M.; Fernández Delgado, Isabel (Sociedade Brasileira de Matemática, 2008)
    Following [Ch] and [dCF], we give sufficient conditions for a disk type surface, with piecewise smooth boundary, to be totally umbilical for a given Coddazi pair. As a consequence, we obtain rigidity results for surfaces ...
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    The number of conformally equivalent maximal graphs  [Article]

    Fernández Delgado, Isabel (Springer, 2010)
    We show that the number of entire maximal graphs with finitely many singular points that are conformally equivalent is a universal constant that depends only on the number of singularities, namely 2n for graphs with n + ...
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    The Gauss map of surfaces in PSL˜2(R)  [Article]

    Daniel, Benoit; Fernández Delgado, Isabel; Mira, Pablo (Springer, 2015)
    We define a Gauss map for surfaces in the universal cover of the Lie group PSL2(R) endowed with a left-invariant Riemannian metric having a 4-dimensional isometry group. This Gauss map is not related to the Lie group ...
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    On the uniqueness of the helicoid and Enneper’s surface in the Lorentz-Minkowski space R31  [Article]

    Fernández Delgado, Isabel; López, Francisco J. (American Mathematical Society, 2011)
    In this paper we deal with the uniqueness of the Lorentzian helicoid and Enneper’s surface among properly embedded maximal surfaces with lightlike boundary of mirror symmetry in the Lorentz-Minkowski space R3
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    Harmonic mappings and conformal minimal immersions of Riemann surfaces into RN  [Article]

    Alarcón, Antonio; Fernández Delgado, Isabel; López, Francisco J. (Springer, 2013)
    We prove that for any open Riemann surface N, natural number N ≥ 3, non-constant harmonic map h:N→R N−2 and holomorphic 2-form H on N , there exists a weakly complete harmonic map X=(Xj)j=1,…,\scN:N→R\scN with Hopf ...
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    Constant mean curvature surfaces in 3-dimensional Thurston geometries  [Presentation]

    Fernández Delgado, Isabel; Mira, Pablo (World Scientific, 2011)
    This is a survey on the global theory of constant mean curvature surfaces in Riemannian homogeneous 3-manifolds. These ambient 3-manifolds include the eight canonical Thurston 3-dimensional geometries, i.e. R3, H3, S3, ...
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    Complete minimal surfaces and harmonic functions  [Article]

    Alarcón, Antonio; Fernández Delgado, Isabel; López, Francisco J. (European Mathematical Society, 2012)
    We prove that for any open Riemann surface N and any non constant harmonic function h : N → R, there exists a complete conformal minimal immersion X : N → R3 whose third coordinate function coincides with h. As a ...
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    Complete minimal surfaces in R3 with a prescribed coordinate function  [Article]

    Alarcón, Antonio; Fernández Delgado, Isabel (Elsevier, 2011)
    In this paper we construct complete simply connected minimal surfaces with a prescribed coordinate function. Moreover, we prove that these surfaces are dense in the space of all minimal surfaces with this coordinate ...
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    Finding Multiple Solutions in Nonlinear Integer Programming with Algebraic Test-Sets  [Presentation]

    Hartillo Hermoso, Isabel; Jiménez Cobano, J.M.; Ucha Enríquez, José María (Springer, 2018)
    We explain how to compute all the solutions of a nonlinear integer problem using the algebraic test-sets associated to a suitable linear subproblem. These test-sets are obtained using Gröbner bases. The main advantage ...
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    A vanishing theorem for a class of logarithmic D-modules  [Article]

    Castro Jiménez, Francisco Jesús; Gago Vargas, J.; Hartillo Hermoso, Isabel; Ucha Enríquez, José María (Cornell University, 2007)
    Let OX (resp. DX) be the sheaf of holomorphic functions (resp. the sheaf of linear differential operators with holomorphic coefficients) on X = Cn. Let D X be a locally weakly quasi-homogeneous free divisor defined by ...
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    Matemática Discreta con GeoGebra  [xmlui.item.others]

    Falcón Ganfornina, Raúl Manuel (2014-09)
    No consta
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    A two-layer shallow flow model with two axes of integration, well-balanced discretization and application to submarine avalanches  [Article]

    Delgado Sánchez, Juan Manuel; Bouchut, François; Fernández Nieto, Enrique Domingo; Mangeney, Anne; Narbona Reina, Gladys (Elsevier, 2020-04-01)
    We propose a two-layer model with two different axes of integration and a well-balanced finite volume method. The purpose is to study submarine avalanches and generated tsunamis by a depth-averaged model with different ...
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    Optimal domain for the Hardy operator  [Article]

    Delgado Garrido, Olvido; Soria de Diego, Javier (Elsevier, 2007-03-01)
    We study the optimal domain for the Hardy operator considered with values in a rearrangement invariant space. In particular, this domain can be represented as the space of integrable functions with respect to a vector ...
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    Hipergrafos orientados  [PhD Thesis]

    Ariza Granados, Francisco (1974-06)
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    The use of non-destructive testing to evaluate the compressive strength 1 of a lime-stabilised rammed-earth wall: Rebound index and ultrasonic pulse velocity  [Article]

    Canivell, Jacinto; Martín del Río, Juan Jesús; Falcón Ganfornina, Raúl Manuel (Elsevier, 2020)
    The non-standardization of rammed earth construction involves the quality control of such a technique to be so troublesome that it is generally avoided. As a possible approach to improve the mentioned quality control, this ...
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    An Application of Total-Colored Graphs to Describe Mutations in Non-Mendelian Genetics  [Article]

    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 the evolution algebra describing the genetic pattern of the inheritance process. We identify any ...
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    Optimal Alignments for Designing Urban Transport Systems: Application to Seville  [Article]

    Marseglia, Guido; Medaglia, Carlo Maria; Ortega Riejos, Francisco Alonso; Mesa López-Colmenar, Juan Antonio (MDPI, 2019)
    The achievement of some of the Sustainable Development Goals (SDGs) from the recent 2030 Agenda for Sustainable Development has drawn the attention of many countries towards urban transport networks. Mathematical modeling ...
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    Efficient numerical schemes for viscoplastic avalanches. Part 2: the 2D case  [Article]

    Fernández Nieto, Enrique Domingo; Gallardo, José M.; Vigneaux, Paul (Elsevier, 2018)
    This paper deals with the numerical resolution of a shallow water viscoplastic flow model. Viscoplastic materials are characterized by the existence of a yield stress: below a certain critical threshold in the imposed ...
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    An Efficient Two-Layer Non-hydrostatic Approach for Dispersive Water Waves  [Article]

    Escalante, C.; Fernández Nieto, Enrique Domingo; Morales de Luna, Tomás; Castro Díaz, Manuel Jesús (Springer, 2019)
    In this paper, we propose a two-layer depth-integrated non-hydrostatic system with improved dispersion relations. This improvement is obtained through three free parameters: two of them related to the representation of ...
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    The derivations of some evolution algebras  [Article]

    Camacho Santana, Luisa María; Gómez Martín, José Ramón; Omirov, Bakhrom A.; Turdibaev, R. M. (Taylor and Francis, 2013)
    In this work we investigate the derivations of n−dimensional complex evolution algebras, depending on the rank of the appropriate matrices. For evolution algebra with non-singular matrices we prove that the space of ...

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