DER Mathematiques et informatique Universite de Bamako, BPE 3206 Bamako-Mali

We establish a weighted inequality for an operator of convolution type, between weak Lebesgue spaces and a Wiener amalgam type space onR equipped with an other measure which need not to be doubling. AMS Subject Classification : 43A15 ; 42B20 ; 42B25 ; 42B35