closed covering

closed covering

[¦klōzd ′kəv·ər·iŋ]
(mathematics)
A closed covering of a set S in a topological space is a collection of closed sets whose union contains S.
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References in periodicals archive ?
Three catastrophe bonds closed covering property risks in Europe, and three insurers sought coverage for Japan risks with catastrophe bonds, securing USD720m total limit.
Conventional trim panels use sandwich panels with closed covering layers, which are a big acoustic drawback.
It coats laminated wood with a smooth and fully closed covering of the polyurethane integral skin foam system BaydurA.