Abstract
Lemma 15.1.1. The algebra homomorphism x : f → U given by \({\theta _i} \mapsto E_i^\prime = ({v_i} - {v_i}^{ - 1}){\tilde K_{ - i}}{E_i}\) (i ∈ I) factors through an algebra homomorphism f →U.
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Lusztig, G. (2010). The Algebra \(\mathfrak{U}\) . In: Introduction to Quantum Groups. Modern Birkhäuser Classics. Birkhäuser Boston. https://doi.org/10.1007/978-0-8176-4717-9_15
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DOI: https://doi.org/10.1007/978-0-8176-4717-9_15
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