We describe all natural symplectic structures on the tangent bundles of symplectic and cosymplectic manifolds.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ap82-3-8, author = {J. Kurek and W. M. Mikulski}, title = {Symplectic structures on the tangent bundles of symplectic and cosymplectic manifolds}, journal = {Annales Polonici Mathematici}, volume = {81}, year = {2003}, pages = {273-285}, zbl = {1056.58003}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap82-3-8} }
J. Kurek; W. M. Mikulski. Symplectic structures on the tangent bundles of symplectic and cosymplectic manifolds. Annales Polonici Mathematici, Tome 81 (2003) pp. 273-285. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap82-3-8/