Cauchy action on filter spaces

N. Rath

Research output: Contribution to journalArticlepeer-review


A Cauchy group (G,D, ·) has a Cauchy-action on a filter space (X,C), if it acts in a compatible manner. A new filter-based method is proposed in this paper for the notion of group-action, from which the properties of this action such as transitiveness and its compatibility with various modifications of the G-space (X,C) are determined. There is a close link between the Cauchy action and the induced continuous action on the underlying G-space, which is explored here. In addition, a possible extension of a Cauchy-action to the completion of the underlying G- space is discussed. These new results confirm and generalize some of the properties of group action in a topological context.

Original languageEnglish
Pages (from-to)177-191
Number of pages15
JournalApplied General Topology
Issue number1
Publication statusPublished - 1 Jan 2019


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