Constructions of metric (n + 1)-Lie algebras
Constructions of metric (n + 1)-Lie algebras
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DOI:
10.1007/s11401-016-0977-1
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发表时间:
2016-08
期刊:
影响因子:
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通讯作者:
R. Bai;Shuangshuang Chen
中科院分区:
文献类型:
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作者:
R. Bai;Shuangshuang Chen
Metricn-Lie algebras have wide applications in mathematics and mathematical physics. In this paper, the authors introduce two methods to construct metric (n+1)-Lie algebras from metricn-Lie algebras forn≥ 2. For a givenm-dimensional metricn-Lie algebra (g, [, · · ·, ],Bg), via one and two dimensional extensions L = g +Fcand g0= g + Fx−1+Fx0of the vector space g and a certain linear functionfon g, we construct (m+1)- and (m+2)-dimensional (n+1)-Lie algebras (L, [, · · ·, ]cf) and (g0, [, · · ·, ]1), respectively. Furthermore, if the centerZ(g) is non-isotropic, then we obtain metric (n+1)-Lie algebras (L, [, · · ·, ]cf,B) and (g0, [, · · ·, ]1,B) which satisfyB|g×g= Bg. Following this approach the extensions of all (n+ 2)-dimensional metric n-Lie algebras are discussed.