Calculus of Variations
- Action Integral
- Affine Maximal Equation
- Allen-Cahn Equation
- Beltrami Identity
- Bolza Problem
- Brachistochrone Problem
- Brenier Map
- Calculus of Variations
- Castigliano's Theorem
- de Giorgi Conjecture
- Dido's Problem
- Dyson-Schwinger Equations
- Einstein-Hilbert Functional
- Elastic Knot
- Euclidean Action
- Euler-Lagrange Derivative
- Euler-Lagrange Differential Equation
- Functional Calculus
- Functional Derivative
- Functional Differential Equation
- Functional Integral
- Fundamental Lemma of Calculus of Variations
- Goldschmidt Solution
- Isoperimetric Problem
- Isoperimetric Theorem
- Isovolume Problem
- Jacobi Differential Equation
- Jellium Energy
- Lagrangian Function
- Ma-Trudinger-Wang Condition
- Minimal Hypersurface
- Minimal Submanifold
- Morse Function
- Morse Theory
- Mumford-Shah Conjecture
- Mumford-Shah Functional
- Navigation Problem
- Noether's Symmetry Theorem
- One-Phase Bernoulli Problem
- Optimal Transport
- Plateau's Laws
- Plateau's Problem
- Principle of Virtual Work
- Quasiconvexity
- Rank-One Convex Function
- Sinclair's Soap Film Problem
- Stationary Integral Varifold
- Tautochrone Problem
- Theorem of Least Work
- Total Variation
- Truncated Octahedral Conjecture
- Variation
- Variational Inequality
- Varifold
- Weierstrass-Erdman Corner Condition
- Wetterich Equation
- Willmore Energy
- Willmore Equation
- Willmore Inequality
- Willmore Surface