Rossi, Olga The Lagrangian order-reduction theorem in field theories. (English) Zbl 1397.49008 Commun. Math. Phys. 362, No. 1, 107-128 (2018). MSC: 49J20 93B17 93B27 × Cite Format Result Cite Review PDF Full Text: DOI
Barbero-Liñán, María; Farré Puiggalí, Marta; Ferraro, Sebastián; Martín de Diego, David The inverse problem of the calculus of variations for discrete systems. (English) Zbl 1423.70044 J. Phys. A, Math. Theor. 51, No. 18, Article ID 185202, 39 p. (2018). MSC: 70G75 70F17 70F25 70G45 39A60 49K45 × Cite Format Result Cite Review PDF Full Text: DOI arXiv Link