The characterizations of upper approximation operators based on special coverings

DOI10.1515/math-2017-0015zbMath1377.54003OpenAlexW2592577235MaRDI QIDQ521568

Pei Wang, Qing-Guo Li

Publication date: 11 April 2017

Published in: Open Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1515/math-2017-0015

zbMATH Keywords

rough setsclosure operatortopologyupper approximation operator

Mathematics Subject Classification ID

Topological spaces and generalizations (closure spaces, etc.) (54A05) Fuzzy topology (54A40)

Cites Work

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