Higher-order Noether's theorem;
existence and uniqueness;
DuBois-Reymond conditions;
Euler-Lagrange equations;
EULER-LAGRANGE EQUATION;
DERIVATIVES;
REGULARITY;
D O I:
10.1080/00036811.2021.1921159
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In the present paper, we discuss the existence and uniqueness of solution for higher-order calculus of variations problems, involving composition of functionals. Also, higher-order DuBois-Reymond conditions in the Sobolev space W-m,W-p([t(1), t(2)]; R) are proven, both in integral and differential form, and under additional constraints. We consider the higher-order Noether's theorem and discuss invariance conditions for the main problem.