The concepts of strong PS-irresolute open mapping and strong PS-irresolute closed mapping are introduced in L-spaces and their properties are researched.
给出了强ps -不定开映射和强ps -不定闭映射的概念，并且讨论了它们的一些性质。
The concepts of strong PS-irresolute open mapping and strong PS-irresolute closed mapping are introduced in L-spaces and their properties are researched.
给出了强ps -不定开映射和强ps -不定闭映射的概念，并且讨论了它们的一些性质。
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