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searching for Regular open set 2 found (7 total)

Alexandroff plank (453 words) [view diff] exact match in snippet view article find links to article

each basis rectangle in the topology τ {\displaystyle \tau } is a regular open set and so are the sets U ( α , n ) {\displaystyle U(\alpha ,n)} defined

Locally convex topological vector space (10,568 words) [view diff] no match in snippet view article find links to article

(respectively, open) set if and only if it is a regular closed (respectively, regular open) set. If C {\displaystyle C} is convex and 0 < t ≤ 1 , {\displaystyle 0<t\leq