106 citations
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math-ph2024★ 1 cited
A Hamiltonian formalism for general variational problems, with applications to first order gravity with basis
Guadalupe Quijón, Santiago Capriotti
The present article introduces a generalization of the (multisymplectic) Hamiltonian field theory for a Lagrangian density, allowing the formulation of this kind of field theories…
math-ph2018★ 2 cited
Routh reduction for first-order field theories
S. Capriotti, E. García-Toraño Andrés
We present a reduction theory for first order Lagrangian field theories which takes into account the conservation of momenta. The relation between the solutions of the original pro…
math-ph2018★ 2 cited
Oversampling and undersampling in de Branges spaces arising from regular Schrödinger operators
Luis O. Silva, Julio H. Toloza, Alfredo Uribe
The classical results on oversampling and undersampling (or aliasing), of functions in Paley-Wiener spaces, are generalized to the case of functions in de Branges spaces arising fr…