Automorphisms and derivations of Uq(sl4
Automorphisms and derivations of Uq(sl4
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Uq(sl4) 的自同构和推导
DOI:
10.1016/j.jpaa.2007.01.003
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发表时间:
2007
影响因子:
0.8
通讯作者:
S. A. Lopes
中科院分区:
文献类型:
--
作者:
S. Launois;S. A. Lopes
We compute the automorphism group of the q-enveloping algebra Uq(sl4+) of the nilpotent Lie algebra of strictly upper triangular matrices of size 4. The result obtained gives a positive answer to a conjecture of Andruskiewitsch and Dumas. We also compute the derivations of this algebra and then show that the Hochschild cohomology group of degree 1 of this algebra is a free (left) module of rank 3 (which is the rank of the Lie algebra sl4) over the center of Uq(sl4+).
影响因子:
0.9
作者:
Launois S.
通讯作者:
Launois S.