Quasi-interior

Quasi-interior

In topology, a continuous map f : X ightarrow Y between topological spaces X and Y is said to be quasi-interior if, for any open set U subset X, the interior of f(U) in Y is non-empty.

References

A.Blokh, L.Oversteegen and E.D.Tymchatyn, "On almost one-to-one maps", Trans. Amer. Math. Soc (2006).


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