{ "id": "2103.14841", "version": "v1", "published": "2021-03-27T08:31:23.000Z", "updated": "2021-03-27T08:31:23.000Z", "title": "On $I^K$-Convergence in a Topological space via semi-open sets", "authors": [ "Ankur Sharmah", "Debajit Hazarika" ], "comment": "8 pages", "categories": [ "math.GN" ], "abstract": "In this article, we consider $\\mathcal{I}^\\mathcal{K}$-convergence to define a new concept of convergence namely, $\\mathcal{S}$-$\\mathcal{I}^\\mathcal{K}$-convergence which generalizes the notion of $\\mathcal{S}$-$\\mathcal{I}$-convergence introduced by Guevara et al. \\cite{GSR20} recently. Some properties of $\\mathcal{S}$-$\\mathcal{I}^\\mathcal{K}$-convergence of sequences and its relation with compact sets are discussed. In particular, we investigate the relation between semi-compactness and semi-Lindeloffness by introducing the notion of $\\mathcal{S}$-$\\mathcal{I}^\\mathcal{K}$-cluster point of a sequence. The \"Equivalence between semi-dense and dense sets\" is utilized to characterize the set of $\\mathcal{S}$-$\\mathcal{I}^\\mathcal{K}$-cluster points of a sequence as semi-closed subsets of a topological space. Moreover, in product space, we obtain some results for $\\mathcal{I}^\\mathcal{K}$-convergence which also holds for $\\mathcal{S}$-$\\mathcal{I}^\\mathcal{K}$-convergence.", "revisions": [ { "version": "v1", "updated": "2021-03-27T08:31:23.000Z" } ], "analyses": { "subjects": [ "54A20", "40A05", "40A35" ], "keywords": [ "convergence", "topological space", "semi-open sets", "cluster point", "compact sets" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }