Actes de la R.C.P. no. 25, Rencontre entre physiciens théoriciens et mathématiciens (GDR 859) [Strasbourg, mai 1992], colloque en hommage à Pierre Cartier, vol. 44, p. 25-37, Prépubl. I.R.M.A. Strasbourg, 1993, 041.

Dominique Foata

Commutation et réarrangements, hier et aujourd'hui

Abstract. The purpose of this paper is to show how and in what fields the commutation problems occurred (in particular in joint work with Pierre Cartier in the sixties) to describe the techniques used to solve them, finally to mention how Han has updated them to prove a recent conjecture due to Denert.

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