In this paper, we prove directly that α-times integrated groups define algebra homomorphisms. We also give a theorem of equivalence between smooth distribution groups and α-times integrated groups.
基金the Spanish Project MTM2004-03036,MCYT DGI FEDER the DGA Project"Análisis Matemático y Aplicaciones"E-12/25
文摘In this paper, we prove directly that α-times integrated groups define algebra homomorphisms. We also give a theorem of equivalence between smooth distribution groups and α-times integrated groups.