Stability results for Harnack inequalities

Grigor'yan, Alexander; Saloff-Coste, Laurent

Annales de l'Institut Fourier, Volume 55 (2005) p. 825-890

A geometric approach to on-diagonal heat kernel lower bounds on groups

Coulhon, Thierry; Grigor'yan, Alexander; Pittet, Christophe

Annales de l'Institut Fourier, Volume 51 (2001) p. 1763-1827