λ—可拓域和λ—稳定域

λ-Entension Domain and λ-stability Domain

在可拓集、可拓域、稳定域的基础上引入可拓集的λ—上域，λ—下域，λ—界及可拓集关于变换T的—上域，λ—下域，λ—可拓集，λ—稳定域。分析了可拓集的交、并的λ—可拓域和λ—稳定域的结构。研究了可拓集的交、并的λ—可拓域和λ—稳定域与可拓集的λ—上域，λ—下域，λ—可拓域，λ—稳定域之间关系。

Based on extension domain set, extension domain and stability domain, the paper introduces λ- superior domain, λ- inferior domain and λ- boundary of extension set as well as λ- superior domain, λ- inforior domain, λextension domain and λ - stability domain of transform T of extension set. It also analyzes the structure of λ- extension domain and λ - stability domain of intersection and union of entension set and theirrelationship wish those mentioned above.