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词汇 Cycle index
分类 英语词汇 英语翻译词典
释义

Cycle index

英语百科

Cycle index

Cube with colored faces

In combinatorial mathematics a cycle index is a polynomial in several variables which is structured in such a way that information about how a group of permutations acts on a set can be simply read off from the coefficients and exponents. This compact way of storing information in an algebraic form is frequently used in combinatorial enumeration.

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