OPTIMAL HARDY-TYPE INEQUALITIES FOR SCHRÖDINGER FORMS
概要
for second-order non-negative elliptic operators on non-compact Riemannian manifolds, in
particular, they show that the criticality of Schr¨odinger forms is related to the critical Hardy
weights. In [20] we give a method to construct a critical Schr¨odinger form from a transient Dirichlet form by subtracting a suitable positive potential. In other words, we give a
method to construct critical Hardy weights for a transient Dirichlet form by applying the
idea in [6]. In this paper, we will consider subcritical Schr¨odinger forms instead of transient
Dirichlet forms, and extend the method for subcritical Schr¨odinger forms. As an application,
we obtain a method to construct critical Hardy weights for Schr¨odinger forms. Moreover,
we discuss the optimality of Hardy weights in the sense of [6], a stronger notion than the
criticality, and give a condition for the critical Hardy weights being optimal ones.
Let E be a locally compact separable metric space and m a positive Radon measure on
E with full topological support. Let X = (P x , Xt , ζ) be an m-symmetric Hunt process. We
assume that X is irreducible and resolvent doubly Feller, in addition, that X generates a
regular Dirichlet form (, ()) on L2 (E; m).
Denote by loc (X) the totality of local Kato measures (Definition 3.1 (1)). For a singed
local Kato measure such that the positive (resp. negative) part μ+ (resp. μ− ) of μ belongs to
2020 Mathematics Subject Classification. Primary 31C25; Secondary 26D15, 31C05. ...