ISSN:
1420-8903
Keywords:
49H05
;
53A99
;
70D10
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
Notes:
Abstract An expression is derived for the variation of Lagrangians which are such that the set of admissible variables of variation is star-shaped. If such a Lagrangian leads to identically vanishing Euler-Lagrange expressions then it is shown that under suitable circumstances the Lagrangian in question must be an ordinary divergence. Furthermore, an expression is given for the ‘vector’ field which appears in this ordinary divergence.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01836551
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