Le q-dénombrement générique d'une espèc
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Hélène Décoste; Gilbert Labelle
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Article
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1996
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Elsevier Science
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English
⚖ 370 KB
For every species F of structures and every partition 2 = (21 ,/~2 .... ) of an integer n, let us denote by t~ = t~(F) the number of orbits under the natural action of the Young subgroup ~ = ~;.,,,~ ..... ~< ~. on the set of all F-structures with underlying set In]. The goal of this text is to prove