Séminaire Lotharingien de Combinatoire, B34g (1995), 23pp.
Alain Lascoux, Bernard Leclerc and Jean-Yves Thibon
Ribbon tableaux, Hall-Littlewood functions and unipotent varieties
We introduce a new family of symmetric functions, which are defined
in terms of ribbon tableaux and generalize Hall-Littlewood functions.
We present a series of conjectures, and prove them in two special
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