摘要：In this paper we study ideals in Banach spaces through ideal operators. We providecharacterisation of recently introduced notion of almost isometric ideal which is a version of Principleof Local Reexivity for a subspace of a Banach space. Studying ideals through ideal operators giveus better insight in to the properties of these subspaces vis-a-vis properties of the space itself. Weprovide a few applications of our characterisation theorem.
