{ "id": "0901.4127", "version": "v1", "published": "2009-01-26T21:44:38.000Z", "updated": "2009-01-26T21:44:38.000Z", "title": "Heat kernel estimates and Harnack inequalities for some Dirichlet forms with non-local part", "authors": [ "Mohammud Foondun" ], "categories": [ "math.PR" ], "abstract": "We consider the Dirichlet form given by \\sE(f,f)&=&{1/2}\\int_{\\bR^d}\\sum_{i,j=1}^d a_{ij}(x)\\frac{\\partial f(x)}{\\partial x_i} \\frac{\\partial f(x)}{\\partial x_j} dx &+&\\int_{\\bR^d\\times \\bR^d} (f(y)-f(x))^2J(x,y)dxdy. Under the assumption that the $\\{a_{ij}\\}$ are symmetric and uniformly elliptic and with suitable conditions on $J$, the nonlocal part, we obtain upper and lower bounds on the heat kernel of the Dirichlet form. We also prove a Harnack inequality and a regularity theorem for functions that are harmonic with respect to $\\sE$.", "revisions": [ { "version": "v1", "updated": "2009-01-26T21:44:38.000Z" } ], "analyses": { "subjects": [ "60J35", "60J75" ], "keywords": [ "heat kernel estimates", "dirichlet form", "harnack inequality", "non-local part", "nonlocal part" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }