Calculus of variations 53 Mathematical optimization 9 Control theory 6 Differential equations, Partial 4 Hamiltonian systems 4 Differential equations 3 Differential equations, Elliptic 3 Differential equations, Nonlinear 3 Approximation theory 2 Convergence 2 Engineering mathematics 2 Function spaces 2 Functional analysis 2 Mathematics 2 Calculus of tensors 1 Complementarity (Physics) 1 Computers 1 Convex domains 1 Critical point theory 1 Decision making 1 Differentiable dynamical systems 1 Elastic analysis (Theory of structures) 1 Electromagnetism 1 Exponential functions 1 Form (Philosophy) 1 Functions of bounded variation 1 Geometry, Riemannian 1 Heat 1 Hilbert space 1 Hypersurfaces 1