（T＋λI）^（－1）不一定是非扩张映射

(T+λI) -1 is not Necessarily a Nonexpansive Mapping

设Ｔ是ｍ增生算子，Ｉ是恒等映射．本文通过一个反例说明（Ｔ＋λＩ）－１（λ＞０）不一定是非扩张映射．

A counterexample is given to show that the mapping (T+λI) -1 may be expansive.