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soft set

Last-modified: 2012-02-13 (月) 18:09:39

Definition Edit

  • Let U be an initial universe set and E be a set of parameters. Let A ⊆ E. A pair (F, A) is called a soft set over U, where F is a mapping given by F : A → P(U). In other words, a soft set over U is a parametrized family of subsets of the universe U.

Reference Edit

  • Molodtsov, D. Soft set theory -first results. (English summary), Global optimization, control, and games, III., Comput. Math. Appl. 37 (1999), no. 4-5, 19-31.