Open Access

Harnack's Estimates: Positivity and Local Behavior of Degenerate and Singular Parabolic Equations

  • Emmanuele DiBenedetto1Email author,
  • Ugo Gianazza2,
  • Mikhail Safonov3,
  • José Miguel Urbano4 and
  • Vincenzo Vespri5
Boundary Value Problems20072007:042548

DOI: 10.1155/2007/42548

Received: 20 November 2006

Accepted: 28 November 2006

Published: 15 March 2007

Authors’ Affiliations

Department of Mathematics, Vanderbilt University
Dipartimento di Matematica "F. Casorati", Università di Pavia
School of Mathematics, University of Minnesota
Departamento de Matemática, Universidade de Coimbra
Dipartimento di Matematica "U. Dini", Università di Firenze


© Emmanuele DiBenedetto et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.