A new formulation of Harnackʼs inequality for nonlocal operators

Moritz Kassmann

Comptes Rendus. Mathématique, Volume 349 (2011) no. 11 p. 637-640

The theory of De Giorgi for non-local operators

Moritz Kassmann

Comptes Rendus. Mathématique, Volume 345 (2007) no. 11 p. 621-624