Maxima and minima.

Variational methods for eigenvalue approximation / by: (Language materials, printed)

Optimization theory by: (Language materials, printed)

Minimax systens and critical point theory by: (Language materials, printed)

Theory of extremal problems by: (Language materials, printed)

Differential operators.

Approximation theory.

Eigenvalues.

Ordinary Differential Equations.

Maxima and minima.

Mathematics.

Calculus of variations.

Partial Differential Equations.

Functional Analysis.

Mathematical optimization.

Critical point theory (Mathematical analysis)

Extremal problems (Mathematics)