arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/9805024math.GRmath-phmath.MPmath.RA
收藏

e(p,q)代数的极大Abel子代数

Maximal Abelian Subalgebras of e(p,q) algebras

Zora Thomova, Pavel Winternitz

摘要:

构造了一类典型实非齐次李代数的极大交换子代数,即伪欧氏李代数e(p,q)的极大交换子代数.利用e(p,q)与平移T(p+q)作为交换理想的半直和结构。我们首先构造分裂MASA,它们本身是O(p,q)的交换子代数和T(p+q)的子代数的直和。分裂子代数被用来构造互补的非分裂子代数。给出了一般分解定理,并对所有代数e(p,q),p \geq q \geq 0构造了不可分解MASA. q=0和1的情况在物理环境中较早处理。这里详细分析了q=2的情况,作为一般结果的说明。

英文摘要:

Maximal abelian subalgebras of one of the classical real inhomogeneous Lie algebras are constructed, namely those of the pseudoeuclidean Lie algebra e(p,q). Use is made of the semidirect sum structure of e(p,q) with the translations T(p+q) as an abelian ideal. We first construct splitting MASAs that are themselves direct sums of abelian subalgebras of o(p,q) and of subalgebras of T(p+q). The splitting subalgebras are used to construct the complementary nonsplitting ones. We present general decomposition theorems and construct indecomposable MASAs for all algebras e(p,q), p \geq q \geq 0. The case of q=0 and 1 were treated earlier in a physical context. The case q=2 is analyzed here in detail as an illustration of the general results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑