Canonical bases for quantum generalized Kac-Moody algebra
Seok-Jin Kang, Olivier Schiffmann
math.QAarXiv:math/0311089
Abstract
We construct a canonical basis for quantum generalized Kac-Moody algebra via semisimple perverse sheaves on varieties of representations of quivers. We compare this basis with the one recently defined purely algebraically by Jeong, Kang and Kashiwara.
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