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发帖数: 60 | 1 [1] A.P. ˇSostak, On compactness and connectedness degrees of fuzzy sets in
fuzzy topological spaces, in: General Topology and its Relations to Modern
Analysis and Algebra VI, Proc. 6th Prague Top. Symp. 1986 (Ed.: Z. Frolik),
Heldermann Verlag Berlin 1988, 519, 532.
[2] A. P. ˇSostak, Two decades of fuzzy topology: basic ideas, notions and
results,
Russian Math. Surveys, 44: 6 (1989), 125-186. |
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