177 citations · 1k across the 25 of their papers we have counts for
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math.RT2004★ 8 cited
Verma modules and preprojective algebras
Christof Geiss, Bernard Leclerc, Jan Schröer
We give a geometric construction of the Verma modules of a symmetric Kac-Moody Lie algebra in terms of constructible functions on the varieties of nilpotent finite-dimensional modu…
math.RT2004★ 97 cited
Semicanonical bases and preprojective algebras
Christof Geiss, Bernard Leclerc, Jan Schröer
We study the multiplicative properties of the dual of Lusztig's semicanonical basis.The elements of this basis are naturally indexed by theirreducible components of Lusztig's nilpo…