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The characterizations of upper approximation operators based on special coverings - MaRDI portal

The characterizations of upper approximation operators based on special coverings

From MaRDI portal
Publication:521568

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






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