Some weighted Hardy-type inequalities on anisotropic Heisenberg groups.
Strichatz inequalities with weights in Morrey-Campanato classes.
Strongly elliptic linear operators without coercive quadratic forms I. Constant coefficient operators and forms
A family of linear homogeneous 4th order elliptic differential operators with real constant coefficients, and bounded nonsmooth convex domains are constructed in so that the have no constant coefficient coercive integro-differential quadratic forms over the Sobolev spaces .