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math-ph2011★ 3 cited
Variational Lie derivative and cohomology classes
Marcella Palese, Ekkehart Winterroth
We relate cohomology defined by a system of local Lagrangian with the cohomology class of the system of local variational Lie derivative, which is in turn a local variational probl…
math-ph2011★ 4 cited
Constructing towers with skeletons from open Lie algebras and integrability
Marcella Palese, Ekkehart Winterroth
We provide a given algebraic structure with the structure of an infinitesimal algebraic skeleton. The necessary conditions for integrability of the absolute parallelism of a tower…