标题： 关于特尔齐奥卢的一个定理 显示英文标题

标题： On a theorem of Terzioğlu

摘要： 紧线性算子在巴拿赫空间上的理论具有如此经典的内核，并且为许多人所熟悉。 也许不太为人所知的是特尔齐奥卢对紧映射的特征定理。 在本文中，我们考虑特尔齐奥卢定理及其后果。 我们还在巴拿赫空间存在逼近方案的情况下，给出一个类似的特征定理。 显示英文摘要

摘要： The theory of compact linear operators acting on a Banach space has such a classical core and is familiar to many. Perhaps lesser known is the characterization theorem of Terzio\u{g}lu for compact maps. In this paper we consider Terzio\u{g}lu's theorem and its consequences. We also give a similar characterization theorem in case where there is an approximation scheme on the Banach space.