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 ?
It coats laminated wood with a smooth and fully closed covering of the polyurethane integral skin foam system BaydurA.
Conventional trim panels use sandwich panels with closed covering layers, which are a big acoustic drawback.