5352206
9780486457871
This text presents extended separation, comparison, and oscillation theorems that replace classical analysis of Legendre, Jacobi, and Hilbert. Its analysis of related quadratic functionals shows how critical extremals can substitute for minimizing extremals. Additional topics include focal conditions and Sturm-like theorems, general boundary conditions, and root theory prestructures. 1973 edition.Morse, Marston is the author of 'Variational Analysis Critical Extremals and Sturmian Extensions', published 2007 under ISBN 9780486457871 and ISBN 0486457877.
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