Central extensions of generalized orthosymplectic Lie superalgebras
Central extensions of generalized orthosymplectic Lie superalgebras
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广义正交李超代数的中心扩展
DOI:
10.1007/s11425-015-0693-0
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发表时间:
2015-09
期刊:
影响因子:
--
通讯作者:
WANG YONGJIE
中科院分区:
文献类型:
--
作者:
CHANG ZHIHUA;WANG YONGJIE
We completely determine the universal central extension of the generalized orthosymplectic Lie superalgebra ospm|2n(R,-) that is coordinatized by an arbitrary unital associative superalgebra (R,-) with superinvolution. As a result, an identification between the second homology group of the Lie superalgebra ospm|2n(R,-) and the first skew-dihedral homology group of the associative superalgebra (R,-) with superinvolution is created for positive integersmandnwith (m,n) ≠ (1,1) and (m,n) ≠ (2,1). The second homology groups of the Lie superalgebras osp1|2(R,-) and osp2|2(R,-) are also characterized explicitly.
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