• Artículo
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      Gröbner bases and cocyclic Hadamard matrices 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Falcón Ganfornina, Raúl Manuel; Frau García, María Dolores; Gudiel Rodríguez, Félix (Elsevier, 2018)
      Hadamard ideals were introduced in 2006 as a set of nonlin-ear polynomial equations whose zeros are uniquely related ...
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      Gröbner bases and logarithmic D-modules 

      Castro Jiménez, Francisco Jesús; Ucha Enríquez, José María (Elsevier, 2006)
      Let C[x] = C[x1, . . . , xn] be the ring of polynomials with complex coefficients and An the Weyl algebra of order n over ...
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      Gröbner bases and the number of Latin squares related to autotopisms of order ≤7 

      Falcón Ganfornina, Raúl Manuel; Martín Morales, Jorge (Elsevier, 2007)
      Latin squares can be seen as multiplication tables of quasigroups, which are, in general, noncommutativeand non-associative ...
    • Ponencia
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      Gymkhana geométrica en el parque de María Luisa 

      Falcón Ganfornina, Raúl Manuel (2008-10)
      El presente taller muestra las posibilidades geométricas que ofrece nuestro entorno inmediato para el desarrollo de ...
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      Hadamard Matrices with Cocyclic Core 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Gudiel Rodríguez, Félix; Güemes Alzaga, María Belén; Osuna Lucena, Amparo (MDPI, 2021)
      Since Horadam and de Launey introduced the cocyclic framework on combinatorial designs in the 1990s, it has revealed ...
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      Hamiltonian triangular refinements and space-filling curves 

      Márquez Pérez, Alberto; Plaza, Ángel; Suárez, José P. (Elsevier, 2019)
      We have introduced here the concept of Hamiltonian triangular refinement. For any Hamiltonian triangulation it is shown ...
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      Harmonic mappings and conformal minimal immersions of Riemann surfaces into RN 

      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 ...
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      Harmonic maps and constant mean curvature surfaces in H 2 x R 

      Fernández Delgado, Isabel; Mira, Pablo (Johns Hopkins University Press, 2007)
      We introduce a hyperbolic Gauss map into the Poincar´e disk for any surface in H2×R with regular vertical projection, and ...
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      Heisenberg superalgebras 

      Camacho Santana, Luisa María; Gómez Martín, José Ramón; Navarro, R. M. (Taylor and Francis, 2009)
      Heisenberg algebras are the only Lie algebras (g, [, ]) which verify [g, g] = Z(g) and dim(Z(g)) = 1, where Z denotes the ...
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      Hexagonal Tilings and Locally C6 Graphs 

      Garijo Royo, Delia; Gitler, I.; Márquez Pérez, Alberto; Revuelta Marchena, María Pastora (Cornell University, 2005)
      We give a complete classification of hexagonal tilings and locally C6 graphs, by showing that each of them has a natural ...
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      Hexagonal Tilings: Tutte Uniqueness 

      Garijo Royo, Delia; Márquez Pérez, Alberto; Revuelta Marchena, María Pastora (Cornell University, 2005)
      We develop the necessary machinery in order to prove that hexagonal tilings are uniquely determined by their Tutte polynomial, showing as an example how to apply this technique to the toroidal hexagonal tiling.
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      High order extensions of Roe schemes for two dimensional nonconservative hyperbolic systems 

      Castro Díaz, Manuel Jesús; Fernández Nieto, Enrique Domingo; Ferreiro Ferreiro, Ana María; García Rodríguez, J.A.; Parés Madroñal, Carlos (Plenum Press, 2009)
      This paper is concerned with the development of well-balanced high order Roe methods for two-dimensional nonconservative ...
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      Holomorphic quadratic differentials and the Bernstein problem in Heisenberg space 

      Fernández Delgado, Isabel; Mira, Pablo (American Mathematical Society, 2009)
      We classify the entire minimal vertical graphs in the Heisenberg group Nil3 endowed with a Riemannian left-invariant metric. ...
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      Homological models for semidirect products of finitely generated Abelian groups 

      Álvarez Solano, Víctor; Frau García, María Dolores; Real Jurado, Pedro; Armario Sampalo, José Andrés (2012)
      Let G be a semidirect product of finitely generated Abelian groups. We provide a method for constructing an explicit ...
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      Homological optimality in Discrete Morse Theory through chain homotopies 

      Molina Abril, Helena; Real Jurado, Pedro (2012)
      Morse theory is a fundamental tool for analyzing the geometry and topology of smooth manifolds. This tool was translated ...
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      Homological spanning forest framework for 2D image analysis 

      Molina Abril, Helena; Real Jurado, Pedro (2012)
      A 2D topology-based digital image processing framework is presented here. This framework consists of the computation of a ...
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      Homomorphisms and polynomial invariants of graphs 

      Garijo Royo, Delia; Nesetril, Jaroslav; Revuelta Marchena, María Pastora (Elsevier, 2009)
      This paper initiates a general study of the connection between graph homomorphisms and the Tutte polynomial. This connection ...
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      Homomorphisms between graphs embedded in surfaces 

      Garijo Royo, Delia; Goodall, Andrew; Vena Cros, Lluís (Elsevier, 2024-05)
      We extend the notion of graph homomorphism to cellularly embedded graphs (maps) by designing operations on vertices and ...
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      HPT and cocyclic operations 

      González Díaz, Rocío; Real Jurado, Pedro (International Press, 2005)
      We reinterpret the classical theory of cocyclic operations in terms of permutations and homotopy equivalences of ...
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      Improving an algorithm to solve multiple simultaneous conjugacy problems in braid groups 

      González-Meneses López, Juan (American Mathematical Society, 2005)
      There are recent cryptographic protocols that are based on Multiple Simultaneous Conjugacy Problems in braid groups. We ...