58D15 Manifolds of mappings [See also <a href="#code:46T10">46T10</a>, <a href="#code:54C35">54C35</a>]

58D17 Manifolds of metrics (esp. Riemannian)

58D19 Group actions and symmetry properties

58D20 Measures (Gaussian, cylindrical, etc.) on manifolds of maps [See also <a href="#code:28Cxx">28Cxx</a>, <a href="#code:46T12">46T12</a>]

58D25 Equations in function spaces; evolution equations [See also <a href="#code:34Gxx">34Gxx</a>, <a href="#code:35K90">35K90</a>, <a href="#code:35L90">35L90</a>, <a href="#code:35R15">35R15</a>, <a href="#code:37Lxx">37Lxx</a>, <a href="#code:47Jxx">47Jxx</a>]

58D27 Moduli problems for differential geometric structures

58D29 Moduli problems for topological structures

58D30 Applications (in quantum mechanics (Feynman path integrals), relativity, fluid dynamics, etc.)

58D99 None of the above, but in this section

58Exx Variational problems in infinite-dimensional spaces

58E05 Abstract critical point theory (Morse theory, Ljusternik-Schnirelman (Lyusternik-Shnirel&apos;man) theory, etc.)

58E10 Applications to the theory of geodesics (problems in one independent variable)

58E12 Applications to minimal surfaces (problems in two independent variables) [See also <a href="#code:49Q05">49Q05</a>]

58E15 Application to extremal problems in several variables; Yang-Mills functionals [See also <a href="#code:81T13">81T13</a>], etc.

58E17 Pareto optimality, etc., applications to economics [See also <a href="#code:90C29">90C29</a>]

58E20 Harmonic maps [See also <a href="#code:53C43">53C43</a>], etc.

58E25 Applications to control theory [See also <a href="#code:49-XX">49-XX</a>, <a href="#code:93-XX">93-XX</a>]

58E35 Variational inequalities (global problems)

58E99 None of the above, but in this section

58Hxx Pseudogroups, differentiable groupoids and general structures on manifolds

58H05 Pseudogroups and differentiable groupoids [See also <a href="#code:22A22">22A22</a>, <a href="#code:22E65">22E65</a>]

58H10 Cohomology of classifying spaces for pseudogroup structures (Spencer, Gelfand-Fuks, etc.) [See also <a href="#code:57R32">57R32</a>]