A two weight weak inequality for potential type operators
Vachtang Michailovič Kokilashvili, Jiří Rákosník (1991)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
We give conditions on pairs of weights which are necessary and sufficient for the operator to be a weak type mapping of one weighted Lorentz space in another one. The kernel is an anisotropic radial decreasing function.