On Symplectic and Multisymplectic Srtuctures and their Discrete Versions in Lagrangian Formalism

Details On Symplectic and Multisymplectic Srtuctures and their Discrete Versions in Lagrangian Formalism On Symplectic and Multisymplectic Srtuctures and their Discrete Versions in Lagrangian Formalism

2001-04-06

arxiv.org/abs/hep-ph/0104064v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 0 figure

Scientific paper

We introduce the Euler-Lagrange cohomology to study the symplectic and multisymplectic structures and their preserving properties in finite and infinite dimensional Lagrangian systems respectively. We also explore their certain difference discrete counterparts in the relevant regularly discretized finite and infinite dimensional Lagrangian systems by means of the difference discrete variational principle with the difference being regarded as an entire geometric object and the noncommutative differential calculus on regular lattice. In order to show that in all these cases the symplectic and multisymplectic preserving properties do not necessarily depend on the relevant Euler-Lagrange equations, the Euler-Lagrange cohomological concepts and content in the configuration space are employed.

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