Mixing and Covering in the Symmetric Groups

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We discuss mixing and covering theorems in the symmetric groups. We present an example of a covering without mixing, and study the conjugacy class [2n/2] of symmetric groupSn, which demonstrates mixing without covering. We derive some new character identities from the computation of [2n/2]2, and also compute [2n/2]3, filling a hole between theorems of J. L. Brenner (J. Austral. Math. Soc. Ser. A25,1978, 210-214) and Y. Dvir (in"Products of Conjugacy Classes in Groups," Lecture Notes in Math., Vol. 1112, Springer-Verlag, New York/Berlin, 1985). This computation also motivates a certain classification of 3-colored 3-regular graphs.

Original languageEnglish
Pages (from-to)119-140
Number of pages22
JournalJournal of Algebra
Issue number1
StatePublished - 1 Jul 1998


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