Courant algebroid and Lie bialgebroid contractions

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Contractions of Leibniz algebras and Courant algebroids by means of (1,1)-tensors are introduced and studied. An appropriate version of Nijenhuis tensors leads to natural deformations of Dirac structures and Lie bialgebroids. One recovers presymplectic-Nijenhuis structures, Poisson-Nijenhuis structures, and triangular Lie bialgebroids as particular examples.
13 pages, to appear in J. Phys. A. A name of a font (which was wrongly interpreted by LaTeX in arXiv) has been changed

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Differential Geometry, Mathematical Physics, 17B99; 17B62; 53C15; 53D17

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http://salesiana.dossiersoluciones.com/handle/123456789/180677

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0402020
 http://arxiv.org/abs/math/0402020
 J.Phys.A37:5189-5202,2004
 doi:10.1088/0305-4470/37/19/006

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arXiv