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Last-modified: 2013-04-19 (金) 13:08:25

Definition Edit

  • A topological space (X,τ) is said to be an R_YS-space if for all x and y in X, cl{x}≠cl{y} ⇒ cl{x}∩cl{y} is degenerate.

Property Edit

Reference Edit

  • Misra, D. N.; Dube, K. K., Some axioms weaker than the R0-axiom., (Serbo-Croatian summary), Glasnik Mat. Ser. III 8(28) (1973), 145–148.