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Your search keyword '"Ghanam, Ryad A."' showing total 2 results
Start Over Author "Ghanam, Ryad A." Topic lie algebras Topic mathematical symmetry
2 results on '"Ghanam, Ryad A."'

1. New Examples of Einstein Metrics in Dimension Four.

Author

Ghanam, Ryad

Subjects
*HOLONOMY groups, *LIE algebras, *RIEMANNIAN manifolds, *MATHEMATICAL symmetry, *GROUP theory, *MATHEMATICAL research
Abstract

We construct new examples of four-dimensional Einstein metrics with neutral signature and two-dimensional holonomy Lie algebra. [ABSTRACT FROM AUTHOR]

Published
2010
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2. Classification of Symmetry Lie Algebras of the Canonical Geodesic Equations of Five-Dimensional Solvable Lie Algebras.

Author

Almusawa, Hassan, Ghanam, Ryad, and Thompson, Gerard

Subjects
*LIE algebras, *GEODESIC equation, *MATHEMATICAL symmetry, *LIE groups, *GEODESICS, *SOLVABLE groups, *SYMMETRY
Abstract

In this investigation, we present symmetry algebras of the canonical geodesic equations of the indecomposable solvable Lie groups of dimension five, confined to algebras A 5 , 7 a b c to A 18 a . For each algebra, the related system of geodesics is provided. Moreover, a basis for the associated Lie algebra of the symmetry vector fields, as well as the corresponding nonzero brackets, are constructed and categorized. [ABSTRACT FROM AUTHOR]

Published
2019
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