Department of Science Education, Hacettepe University, Beytepe, 06532 Ankara, Turkey
Abstract: In this paper, bitopological counterparts of the cardinal functions Lindelof number, weak Lindelof number and spread are introduced and studied. Some basic relations between these functions and the functions in [3] are given.
Keywords: bi-Lindelof number, weak bi-Lindelof number, bispread, bi-quasi-uniform weight
Classification (MSC91): 54A25, 54E55
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