A multiplicative property of quantum flag minors

Details A multiplicative property of quantum flag minors A multiplicative property of quantum flag minors

2001-12-19

arxiv.org/abs/math/0112205v1

Mathematics

Representation Theory

10 pages

Scientific paper

We study multiplicative properties of the (quantum) dual canonical basis B* associated to a semi-simple complex Lie group G. We provide a subset D of B* such that the following property holds : if two elements b, b' in B* q-commute and if one of these elements is in D, then the product bb' is in B* up to a power of q, where q the quantum parameter. If G is SL_n, then D is the set of so-called quantum flag minors and we obtain a generalization of a result of Leclerc-Nazarov-Thibon, see ArXiv:Math.QA/0011074.

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