{"corpus_id":42244123,"paper_sha":"9662bf7e7b70fc7ebb7b846a47f206b3dbeacfd8","doi":"10.9790/5728-0716370","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2313808133,"dblp_id":null,"acl_id":null,"title":"On Fuzzy - Semi Open Sets and Fuzzy - Semi Closed Sets in Fuzzy Topological Spaces","year":2013,"publication_date":null,"venue":"","journal":{"name":"IOSR Journal of Mathematics","pages":"63-70","volume":"7"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Mathematics"],"reference_count":8,"citation_count":2,"influential_citation_count":0,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"The aim of this paper is to introduce the concept of fuzzy - semi open and fuzzy - semi closed sets of a fuzzy topological space. Some characterizations are discussed, examples are given and properties are established. Also, we define fuzzy - semi interior and fuzzy - semi closure operators. And we introduce fuzzy - t-set, -SO extremely disconnected space analyse the relations between them. MSC 2010: 54A40, 03E72. In this paper we introduce fuzzy -semi open sets and fuzzy -semi closed sets its properties are established in fuzzy topological spaces. The concepts that are needed in this paper are discussed in the second section. The concepts of fuzzy -semi open and fuzzy -semi closed sets in fuzzy topological spaces and studied their properties in the third and fourth section respectively. Using the fuzzy - semi open sets, we introduce the concept of fuzzy - SO extremely disconnected space. The section 5 and 6 are dealt with the concepts of fuzzy -semi interior and -semi closure operators. 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