| 2000 |
| Spiros Cotsakis, V. Melnikov, V. Gavrilov, Integrable Spherically Symmetric p-Brane models Associated with Lie Algebras, Grav. Cosm., Vol = 6, pp. = 0, , 66-75, 2000, |
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| Spiros Cotsakis, Georgios Flessas, P. Leach, Symmetries, Singularities and Integrability in Complex Dynamics II: Rescalings and Time-Translations in 2D Systems, J. Math. Anal. Appl., Vol = 251, pp. = 0, , 587-608, 2000, |
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| Spiros Cotsakis, P. Leach, J. Miritzis, Symmetries, Singularities and Integrability in Complex Dynamics IV: Painleve Integrability of Isotropic Cosmologies, Grav. Cosm., Vol = 6, pp. = 0, , 282-290, 2000, |
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| 1999 |
| Spiros Cotsakis, L. Querella, J. Miritzis, Variational and conformal structure of nonlinear metric-connection gravitational lagrangians, J. Math. Phys., Vol = 40, pp. = 0, , 3063-3071, 1999, |
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| Spiros Cotsakis, V. Ivashchuk, V. Melnikov, p-Brane Black Holes and Post-Newtonian Approximation, Grav. Cosm., Vol = 5, pp. = 0, , 52-57, 1999, |
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| 1998 |
| Spiros Cotsakis, P. Leach, R. Lemmer, Adiabatic Invariants and Mixmaster Catastrophes, Phys. Rev., Vol = D57, pp. = 0, , 4691-4698, 1998, |
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| Spiros Cotsakis, J. Miritzis, Proof of the Cosmic No-Hair Conjecture for Some Quadratic Homogeneous Cosmologies, Class. Quant. Grav., Vol = 15, pp. = 0, , 2795-2801, 1998, |
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| Spiros Cotsakis, P. Leach, H. Pantazi, Symmetries of homogeneous cosmologies, Grav. Cosm., Vol = 4, pp. = 0, , 314-325, 1998, |
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| 1996 |
| Spiros Cotsakis, J. Miritzis, Non-Linear Lagrangians and the Isotropy of the Universe, Phys. Lett., Vol = B383, pp. = 0, , 377-382, 1996, |
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| 1995 |
| Spiros Cotsakis, Georgios Flessas, Past-Instability Conjecture and Cosmological Attractors in Generalized Isotropic Universes, Phys. Rev., Vol = D51, pp. = 0, , 4160-4168, 1995, |
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Greek