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Showing 2004Show all
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math-ph2004★ 12 cited
Gravitational and axial anomalies for generalized Euclidean Taub-NUT metrics
Ion I. Cotăescu, Sergiu Moroianu, Mihai Visinescu
The gravitational anomalies are investigated for generalized Euclidean Taub-NUT metrics which admit hidden symmetries analogous to the Runge-Lenz vector of the Kepler-type problem.…
hep-th2004★ 12 cited
Symmetries and supersymmetries of the Dirac operators in curved spacetimes
I. I. Cotaescu, M. Visinescu
It is shown that the main geometrical objects involved in all the symmetries or supersymmetries of the Dirac operators in curved manifolds of arbitrary dimensions are the Killing v…
cs.SC2004★ 4 cited
Maple+GrTensorII libraries for cosmology
Dumitru N. Vulcanov, Valentina D. Vulcanov
The article mainly presents some results in using MAPLE platform for computer algebra and GrTensorII package in doing calculations for theoretical and numerical cosmology