58-XX Global analysis, analysis on manifolds [See also 32Cxx, 32Fxx, 32Wxx, 46-XX, 53Cxx] {For nonlinear operators, see 47Hxx; for geometric integration theory, see 49Q15} 66337

58E15 Variational problems concerning extremal problems in several variables; Yang-Mills functionals [See also 81T13], etc. 837