A set K of at most countably many simplices of various dimensions in n -dimensional Euclidean space is called a complex if it satisfies the following conditions: (1) All edge simplexes of K belong to K. (2) The intersection of two simplexes in K is the edge simplexes of both simplexes. (3) If we take a suitable neighborhood of a point in a simplex in K , it will intersect with at most finitely many simplexes in K. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
n次元ユークリッド空間中の,たかだか可算個の,種々の次元の単体の集合 Kが次の条件を満たすとき,Kを複体という。 (1) Kに属する単体の辺単体はすべて Kに属する。 (2) Kに属する2つの単体の共通部分は,その両方の単体の辺単体である。 (3) Kに属する単体に含まれる点に対して,ある適当な近傍をとれば,それは Kのたかだか有限個の単体と交わる。
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