Polynomial operator pencils.

Completeness of root functions of regular differential operators / by: (Language materials, printed)

Spectral theory of operator pencils, Hermite-Biehler functions, and their applications by: (Language materials, printed)

Polynomial operator pencils.

Differential equations- Numerical solutions.

Spectral theory (Mathematics)

Differential equations, Partial- Numerical solutions.

Operator Theory.

Mathematics.

Ordinary Differential Equations.

Mathematical Physics.