58D | 58 | 58H

Variational problems in infinite-dimensional spaces

58E05Abstract critical point theory (Morse theory, Ljusternik-Schnirelman (Lyusternik-Shnirelman) theory, etc.)
58E07Abstract bifurcation theory
58E09Group-invariant bifurcation theory
58E10Applications to the theory of geodesics (problems in one independent variable)
58E11Critical metrics
58E12Applications to minimal surfaces (problems in two independent variables)
[See also 49Q05]
58E15Application to extremal problems in several variables; Yang-Mills functionals
[See also 81T13], etc.
58E17Pareto optimality, etc., applications to economics
[See also 90C29]
58E20Harmonic maps
[See also 53C43], etc.
58E25Applications to control theory
[See also 49-XX, 93-XX]
58E30Variational principles
58E35Variational inequalities (global problems)
58E40Group actions
58E99None of the above, but in this section