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λ-T_{1/2}

Last-modified: 2013-04-19 (金) 13:18:34

Definition Edit

  • A topological space (X, τ) is called λ-T_{1/2} if every singleton is λ-open or λ-closed.

Reference Edit

  • Caldas Miguel, Jafari Saeid, On some low separation axioms via λ-open and λ-closure operator., Rend. Circ. Mat. Palermo (2) 54 (2005), no. 2, 195–208.