2 papers
math.FA2003
A Note on Near Subnormal Weighted Shifts
Wang Gong-bao, Ma Ji-pu
A complete characterization of near subnormality for bilateral weighted shifts is obtained. As an application of the main results, many new answers to the Hilbert space problem 160…
math.FA2003
Some Results About Reverses of Cauchy-Schwarz Inequality in Inner Product Spaces
Gong-bao Wamg, Ji-pu Ma
Some new reverses of the Cauchy-Schwarz inequality in inner product spaces are presented in this paper.The results obtained here complement the recent work of the references.