Discrete Models: Combinatorics, Computation, and Geometry, DMCCG 2001
Robert Cori and Jacques Mazoyer and Michel Morvan and Rémy Mosseri (eds.)
DMTCS Conference Volume AA (2001), pp. 275286
author:  JeanChristophe Novelli and Dominique Rossin 

title:  On the Toppling of a Sand Pile 
keywords:  Sand Pile Model, Young Tableaux 
abstract: 
In this paper, we provide the first study of the sand pile
model
SPM(0)
where we assume that all the grains are numbered with
a distinct integer. We obtain a lower bound on the number
of terminal sand piles by establishing a bijection between
a subset of these sand piles and the set of shifted Young
tableaux. We then prove that this number is at least
factorial.

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reference:  JeanChristophe Novelli and Dominique Rossin (2001), On the Toppling of a Sand Pile, in Discrete Models: Combinatorics, Computation, and Geometry, DMCCG 2001, Robert Cori and Jacques Mazoyer and Michel Morvan and Rémy Mosseri (eds.), Discrete Mathematics and Theoretical Computer Science Proceedings AA, pp. 275286 
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