Inserted: 8 mar 2014
Last Updated: 20 apr 2015
Journal: J. Funct. Anal.
We state and prove a general Harnack inequality for minimizers of nonlocal, possibly degenerate, integro-differential operators, whose model is the fractional p-Laplacian.
Keywords: fractional Sobolev spaces, quasilinear nonlocal operators, Hölder regularity, Caccioppoli estimates, Harnack inequality