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单词 CountingTheorem
释义

counting theorem


Given a group actionMathworldPlanetmath of a finite groupMathworldPlanetmath G on a finite setMathworldPlanetmath X, the following expression gives the number of distinct orbits

1|G|gGstabg(X)

Where stabg(X) is the number of elements fixed by the action of g.

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更新时间:2025/5/4 18:39:26