covering

Các nghĩa

1. vật che phủ

   That which covers or conceals; a cover; something spread or laid over or wrapped about another.

   countable

   This bride is covering her face with a veil.

   There was a curtain which was covering the door.

   The car went off the road due to snowfall covering the lane.

2. sự che phủ

   Action of the verb to cover.

   uncountable

3. phủ

   A collection of sets U_i such that their union contains U; such a collection with the additional property that every U_i is open; such a collection with the additional property that every U_i is contained in U.

   countable · uncountable

4. ánh xạ phủ

   A special kind of map that establishes a relationship between two topological spaces in the sense that, under the action of the map, the one looks locally like several copies of the second: Formally, a continuous map π:E→X between topological spaces such that there exists, for every point x in X, a discrete space D_x and an open neighborhood U of x such that π⁻¹(U)= displaystyle ⨆_(d∈D_x)V_d and π|_(V_d):V_d→U is a homeomorphism for every d∈D_x. See Covering space on Wikipedia.Wikipedia

   countable · uncountable

Dạng khác

• coverings plural