Exploració per tema "Laplacian operator"

Ara es mostren els items 1-8 de 8

    • Fractional Laplacian in conformal geometry 

      González Nogueras, María del Mar; Chang, Sun-Yung Alice (2011-01-30)
      Article
      Accés restringit per política de l'editorial
      In this note, we study the connection between the fractional Laplacian operator that appeared in the recent work of Caffarelli and Silvestre and a class of conformally covariant operators in conformal geometry.

    • Graph operations and Laplacian eigenpolytopes 

      Padrol Sureda, Arnau; Pfeifle, Julián (2010-07)
      Text en actes de congrés
      Accés obert
      We introduce the Laplacian eigenpolytopes ("L-polytopes") associated to a simple undirected graph G, investigate how they change under basic operations such as taking the union, join, complement, line graph and cartesian ...

    • M-Matrix Inverse problem for distance-regular graphs 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2010)
      Comunicació de congrés
      Accés obert

    • M-Matrix Inverse problem for distance-regular graphs 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (Iniciativa Digital Politècnica, 2011)
      Text en actes de congrés
      Accés obert
      We analyze when the Moore–Penrose inverse of the combinatorial Laplacian of a distance–regular graph is a M–matrix;that is, it has non–positive off–diagonal elements or, equivalently when the Moore-Penrose inverse of the ...

    • On a conservative solution to checkerboarding: examining the discrete Laplacian kernel using mesh connectivity 

      Hopman, Johannes Arend; Trias Miquel, Francesc Xavier; Rigola Serrano, Joaquim (Springer, 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      CFD codes that are used for industrial applications commonly use a collocated grid arrangement to calculate the physical flow variables. When using a central differencing gradient (CDG) to discretise the continuous operators ...

    • Regularity of radial stable solutions to semilinear elliptic equations for the fractional laplacian 

      Sanz Perela, Tomás (2018-11-01)
      Article
      Accés obert

    • Renormalized weighted volume for the conformal fractional Laplacian 

      González Nogueras, María del Mar (2011-07)
      Report de recerca
      Accés obert
      We give a notion of renormalized weighted volume in the setting of conformal geometry following the ideas of Fefferman-Graham. Indeed, it is a precise term in the asymptotic expansion near the boundary for a weighted ...

    • Three dimensional adaptive Laplacian Pyramid image coding 

      Sallent Ribes, Sebastián; Torres Urgell, Lluís; Gils, L. (Elsevier, 1990)
      Text en actes de congrés
      Accés obert