Supported by Natural Science Foundations of China (11101108, 11171301, 10771191 and 10471124);Natural Science Foundation of Zhejiang Province of China (Y6090105)
Let X and Y be Banach spaces, 0 〈 q 〈 +∞, i ≤ p 〈 +∞. In this paper, we characterize matrix transformations of lq ( X ) to lp ( Y ).