✦ LIBER ✦

Necessity and sufficiency offbeing a divergence for vanishing of variational derivatives off: General case

✍ Scribed by Joe Rosen

Publisher: Springer
Year: 1979
Tongue: English
Weight: 95 KB
Volume: 3
Category: Article
ISSN: 0377-9017
DOI: 10.1007/bf00405299

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✦ Synopsis

Concise proofs are presented for the necessity and sufficiency of f being a divergence for the variational derivatives of f to vanish identically, where f i s a function of N functions of n variables, their partial derivatives to arbitrary order, and the n variables. The approach is conventional.