Baumann, Mélanie2010-12-222010-12-222010-12-22201110.1016/j.jalgebra.2011.06.032https://infoscience.epfl.ch/handle/20.500.14299/62471WOS:000295017600018The Grothendieck group of permutation modules for a finite group G becomes a biset functor when G is allowed to vary. All the composition factors of this biset functor are determined.Biset functorPermutation modulesComposition factorsThe composition factors of the functor of permutation modulestext::journal::journal article::research article