Difference equations - Oscillation theory.

On some aspects of oscillation theory and geometry / by: (Language materials, printed)

Symplectic difference systems = oscillation and spectral theory / by: (Electronic resources)

Hamiltonian systems.

Operator Theory.

Differential equations, Elliptic.

Symplectic groups.

Spectral theory (Mathematics).

Difference equations- Oscillation theory.

Sturm-Liouville equation.

Difference and Functional Equations.