On Lagrangians and Hamiltonians of some
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Partha Guha; A. Ghose Choudhury
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Article
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2011
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Elsevier Science
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English
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of calculus of variations Lagrangian Jacobi last multiplier Jacobi-Ostrogradski's method a b s t r a c t We derive the Lagrangians of the reduced fourth-order ordinary differential equations studied by Kudryashov, when they satisfy the conditions stated by Fels [Fels ME, The inverse problem of the