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Characterization of the 4-canonical birationality of algebraic threefolds

✍ Scribed by Meng Chen; De-Qi Zhang


Book ID
105875124
Publisher
Springer-Verlag
Year
2007
Tongue
French
Weight
335 KB
Volume
258
Category
Article
ISSN
0025-5874

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One of the observations of [L4] has been that the canonical basis [L1] of the + part of a quantized enveloping algebra attached to a Cartan matrix of finite type is naturally in bijection with a collection of subsets of the set of ``totally positive'' elements in G(R((=))) where G is a semisimple si