We give a new and simpler proof of a two-weight, weak $(p,p)$ inequality for fractional integrals first proved by Cruz-Uribe and Pérez [4].
@article{119262, author = {David Cruz-Uribe}, title = {A new proof of weighted weak-type inequalities for fractional integrals}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {42}, year = {2001}, pages = {481-485}, zbl = {1055.42006}, mrnumber = {1860236}, language = {en}, url = {http://dml.mathdoc.fr/item/119262} }
Cruz-Uribe, David. A new proof of weighted weak-type inequalities for fractional integrals. Commentationes Mathematicae Universitatis Carolinae, Tome 42 (2001) pp. 481-485. http://gdmltest.u-ga.fr/item/119262/
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