期刊
PUBLICATIONES MATHEMATICAE-DEBRECEN
卷 84, 期 1-2, 页码 165-188出版社
KOSSUTH LAJOS TUDOMANYEGYETEM
DOI: 10.5486/PMD.2014.5990
关键词
positively homogeneous functions of degree c; positively homogeneous equations of degree c; semi-variational equations; variational equations; Helmholtz conditions
类别
资金
- Czech Science Foundation [GACR 201/09/0981]
- European Union [317721]
- Institut Mittag-Leffler (Djursholm, Sweden)
- [CZ-8/2009-TET 10-1-2011-0062]
We study second order differential equations considering positive homogeneity of a general degree of the equations and of functions connected with them (like, for example, metrics or Lagrangians). Special attention is payed to semi-variational equations and to relationships between homogeneity properties and variationality (existence of local Lagrangians.
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