Towards a Littlewood-Richardson rule for Kac-Moody homogeneous spaces
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We prove a general combinatorial formula yielding the intersection number $c_{u,v}^w$ of three particular $Λ$-minuscule Schubert classes in any Kac-Moody homogeneous space, generalising the Littlewood-Richardson rule. The combinatorics are based on jeu de taquin rectification in a poset defined by the heap of $w$.
50 pages, option showlabels removed
50 pages, option showlabels removed