%0 Journal Article %T Weighted inequalities for generalized fractional operators %A Riveros %A Mar¨ªa Silvina %J Revista de la Uni£¿3n Matem£¿£¿tica Argentina %D 2008 %I Uni¨®n Matem¨¢tica Argentina %X in this note we present weighted coifman type estimates, and two-weight estimates of strong and weak type for general fractional operators. we give applications to fractional operators given by an homogeneous function, and by a fourier multiplier. the complete proofs of these results appear in the work [5] done jointly with ana l. bernardis and mar¨ªa lorente. %K fractional integrals %K h£¿rmander's condition of young type %K muckenhoupt weights %K two-weight estimates. %U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S0041-69322008000200004&lng=en&nrm=iso&tlng=en