Now showing items 469-488 of 1038

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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 ...
    • PhD Thesis
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      Hipergrafos orientados 

      Ariza Granados, Francisco (1974-06)
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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. ...
    • Chapter of Book
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      Homological computation using spanning trees 

      Molina Abril, Helena; Real Jurado, Pedro (2009)
      We introduce here a new F2 homology computation algorithm based on a generalization of the spanning tree technique on a ...
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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 ...
    • Presentation
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      Homological perturbation theory and computability of Hochschild and cyclic homologies of CDGAs 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Real Jurado, Pedro; Silva Gallardo, Beatriz (Diffiety Institute of the Russian Academy of Natural Sciences, 1997)
      We establish an algorithm computing the homology of commutative differential graded algebras (briefly, CDGAs). The main ...
    • Presentation
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      Homological Region Adjacency Tree for a 3D Binary Digital Image via HSF Model 

      Real Jurado, Pedro; Molina Abril, Helena; Díaz del Río, Fernando; Blanco Trejo, Sergio (Springer, 2019)
      Given a 3D binary digital image I, we define and compute an edge-weighted tree, called Homological Region Tree (or ...
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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 ...
    • PhD Thesis
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      Homological Spanning Forests for Discrete Objects 

      Molina Abril, Helena (2012-06-03)
      Computing and representing topological information form an important part in many applications such as image representation ...
    • Chapter of Book
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      Homological tree-based strategies for image analysis 

      Real Jurado, Pedro; Molina Abril, Helena; Kropatsch, Walter G. (2009)
      Homological characteristics of digital objects can be obtained in a straightforward manner computing an algebraic map φ ...
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      Homomorphisms and Polynomial Invariants of Graphs 

      Revuelta Marchena, María Pastora; Garijo Royo, Delia; Nesetril, Jaroslav (2007)
      This paper initiates a study of the connection between graph homomorphisms and the Tutte polynomial. This connection ...
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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 ...
    • Chapter of Book
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      Human gait identification using persistent homology 

      Lamar León, Javier; García Reyes, Edel; González Díaz, Rocío (2012)
      This paper shows an image/video application using topological invariants for human gait recognition. Using a background ...
    • Presentation
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      Hypergraph logic program representation versus stratified programs 

      David Lobo; Jesús Medina; José R. Portillo; José A. Torné-Zambrano (2024-05)
      Multi-adjoint normal logic programming is a general non-monotonic logic programming framework, which makes it ideal for ...