In this thesis, will consider the Phillips property, the week Phillips property, and the hereditary versions of each in coection with other well-known geometric properties such as the Dunford-Pettis and Schur properties for Banach spaces. The main results an be summarized as follows. Throughout, X is an infinite dimentional Banach space. (a) X has the hereditary Phillips property if and only if X has the hereditary Dunford-Pettis property and does not contain an isomorphic copy of l . (b) If X has the Phillips property, then X is not complemented in any dual space. کلیدواژه فارسی
