We consider problems in the calculus of variations in one independent variable and where the Lagrangian involves derivatives up to order $N, N \geq 1$. Existence ...
Higher-derivative field theories extend conventional frameworks by incorporating terms with higher-order derivatives in their equations of motion. This formulation not only enriches the mathematical ...
This is a preview. Log in through your library . Abstract Nous généralisons la formule de la dérivée de Jacobi en écrivant, pour un m impair, un déterminant de taille m composé de dérivées d’ordre ...
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