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hal-00705135, version 3

The shifted wave equation on Damek--Ricci spaces and on homogeneous trees

Jean-Philippe Anker () 1, Pierre Martinot () 2, Emmanuel Pedon (, http://emmanuel.pedon.free.fr/maths/) 3, Alberto G. Setti () 4

XXXV Convegno di Analisi Armonica (2011) 1-24

Abstract: We solve explicitly the shifted wave equation on Damek--Ricci spaces, using Asgeirsson's theorem and the inverse dual Abel transform. As an application, we investigate Huygens' principle. A similar analysis is carried out in the discrete setting of homogeneous trees.

  • 1:  Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO)
  • Université d'Orléans – CNRS : UMR7349
  • 2:  Institut Élie Cartan Nancy (IECN)
  • CNRS : UMR7502 – Université de Lorraine
  • 3:  Laboratoire de Mathématiques (LM-Reims)
  • CNRS : UMR6056 – Université de Reims - Champagne Ardenne
  • 4:  Dipartimento di Scienza e Alta Tecnologia
  • Università degli Studi dell'Insubria
  • Domain : Mathematics/Analysis of PDEs
    Mathematics/Group Theory
  • Keywords : Abel transform – Damek-Ricci space – homogeneous tree – Huygens' principle – hyperbolic space – wave equation – wave propagation
  • Available versions :  v1 (2012-06-07) v2 (2012-06-09) v3 (2012-07-23)
 
  • hal-00705135, version 3
  • oai:hal.archives-ouvertes.fr:hal-00705135
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  • Submitted on: Monday, 23 July 2012 08:50:50
  • Updated on: Thursday, 1 November 2012 07:29:44