讨论了一类具有负算子系数的算子值解析函数族．给出了一个算子值解析函数ｆ（ｚ）属于Ｓｐ（α，β，γ）的充分必要条件及系数估计，并证明了一个畸变定理......

本文研究算子值函数相对于向量值函数的（Ｒ－Ｓ）型积分，得到了这类积分的Ｈｅｌｌｙ定理。......

In this note a multidimensional Hausdorff truncated operator-valued moment problem, from the point of view of “stabilit......

ＭＥＡＮＶＡＬＵＥＯＦＡＮＡＬＹＴＩＣＯＰＥＲＡＴＯＲＦＵＮＣＴＩＯＮＳＹｕＸｉａｏｐｅｉ（喻小培）（Ｄｅｐｔ．ｏｆＭａｔｈ．，ＣｅｎｔｒａｌＣｈｉｎａＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，Ｗｕｈａｎ４３００７０，Ｃｈｉｎａ）ＪｉａｎＭｉｎｇ（蹇明）（Ｄ.........

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In this article,we study some characterizations of Toeplitz operators with positive operator-valued function as symbols ......