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Complete lift of vector fields and sprays to $T^\infty M$ (1505.01955v2)

Published 8 May 2015 in math.DG

Abstract: In this paper for a given Banach, possibly infinite dimensional, manifold $M$ we focus on the geometry of its iterated tangent bundle $TrM$, $r\in {\N}\cup{\infty}$. First we endow $TrM$ with a canonical atlas using that of $M$. Then the concepts of vertical and complete lifts for functions and vector fields on $TrM$ are defined which they will play a pivotal role in our next studies i.e. complete lift of (semi)sprays. Afterward we supply $T\infty M$ with a generalized Fr\'{e}chet manifold structure and we will show that any vector field or (semi)spray on $M$, can be lifted to a vector field or (semi)spray on $T\infty M$. Then, despite of the natural difficulties with non-Banach modeled manifolds, we will discuss about the ordinary differential equations on $T\infty M$ including integral curves, flows and geodesics. Finally, as an example, we apply our results to the infinite dimensional case of manifold of closed curves.

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