Geodesic
Species over a finite field
Journal of Algebraic Combinatorics, Tome 21 (2005) no. 2, pp. 147-161.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We generalize Joyal $rsquo$s theory of species to the case of functors from the groupoid of finite sets to the category of varieties over F $_{q}$. These have cycle index series defined by counting fixed points of twisted Frobenius maps. We give an application to configuration spaces.
Keywords: keywords species, finite field, configuration space 
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     author = {Henderson, Anthony},
     title = {Species over a finite field},
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Henderson, Anthony. Species over a finite field. Journal of Algebraic Combinatorics, Tome 21 (2005) no. 2, pp. 147-161. http://geodesic.mathdoc.fr/item/JAC_2005__21_2_a3/