Title: Harmonic maps and differential geometry
Subjects: Linear and multilinear algebra; matrix theory -- Basic linear algebra -- Miscellaneous inequalities involving matrices, Differential geometry -- Proceedings, conferences, collections, Differential Geometry, Harmonic maps, Calculus of variations and optimal control; optimization -- Variational principles of physics -- Variational principles of physics (should also be assigned at least one other classification number in section 49), Partial differential equations, Manifolds and cell complexes -- Differential topology -- Symplectic and contact topology. $2 Manifolds and cell complexes -- Differential topology -- Symplectic and contact topology, Congresses, Quantum theory -- Quantum field theory; related classical field theories -- Quantum field theory on curved space backgrounds, Global analysis, analysis on manifolds -- Spaces and manifolds of mappings (including nonlinear versions of 46Exx) -- Spaces of imbeddings and immersions, Differential geometry, Global analysis, analysis on manifolds -- Variational problems in infinite-dimensional spaces -- Variational problems in infinite-dimensional spaces, Geometry, differential, Global analysis (mathematics), Differential equations, partial, Calculus of variations, Quantum theory