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gr-qc2002★ 3 cited
Killing-Yano symmetry for a class of spacetimes admitting parallel null 1-planes
D. Baleanu, S. Baskal
A possible generalization of plane fronted waves with parallel rays (gpp-wave) fall into a more general class of metrics admitting parallel null 1-planes. For gpp-wave metric, the…
gr-qc1998
Symmetries of the dual metrics
Dumitru Baleanu
In this paper the symmetries of the dual manifold were investigated. We found the conditions when the manifold and its dual admit the same Killing vectors and Killing-Yano tensors.…
gr-qc1998
About Duality and Killing tensors
Dumitru Baleanu
In this paper the isometries of the dual space were investigated. The dual structural equations of a Killing tensor of order two were found . The flat space case was analyzed in de…