Vicente Cortés, Jeremias Ehlert, Alexander S. Haupt, David Lindemann
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Classification of left-invariant Einstein metrics on \(\textrm{SL}(2,\mathbb {R})\times \textrm{SL}(2,\mathbb {R})\) that are bi-invariant under a one-parameter subgroup
We classify all left-invariant pseudo-Riemannian Einstein metrics on \(\textrm{SL}(2,\mathbb {R})\times \textrm{SL}(2,\mathbb {R})\) that are bi-invariant under a one-parameter subgroup. We find that there are precisely two such metrics up to homothety, the Killing form and a nearly pseudo-Kähler metric.
期刊介绍:
This journal examines global problems of geometry and analysis as well as the interactions between these fields and their application to problems of theoretical physics. It contributes to an enlargement of the international exchange of research results in the field.
The areas covered in Annals of Global Analysis and Geometry include: global analysis, differential geometry, complex manifolds and related results from complex analysis and algebraic geometry, Lie groups, Lie transformation groups and harmonic analysis, variational calculus, applications of differential geometry and global analysis to problems of theoretical physics.