almost commutative algebras;
metrics;
compatible connections;
curvature;
Ricci tensor;
D O I:
10.1142/S0219887807002351
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
Recently we introduced a new definition of metrics on almost commutative algebras. In this paper, we propose a coherent notion of compatible linear connection with respect to any almost commutative tensor and show that to every metric there corresponds a unique torsion- free compatible connection. This connection is called the Levi - Civita connection of the associated metric.
机构:
Capital Normal Univ, Dept Math, Beijing 100048, Peoples R China
Univ Calif Los Angeles, Dept Math, Los Angeles, CA 90095 USACapital Normal Univ, Dept Math, Beijing 100048, Peoples R China
Liu, Ke Feng
Yang, Xiao Kui
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Hua Loo Keng Ctr Math Sci, Inst Math,Morningside Ctr Math, Beijing 100190, Peoples R ChinaCapital Normal Univ, Dept Math, Beijing 100048, Peoples R China