Open Science Harvester of NAS of Ukraine

Green's formula and theorems on complete collection of isomorphisms for general elliptic boundary value problems for Douglis-Nirenberg systems

by Roitberg, Ya., Roitberg, I.
Published in Нелинейные граничные задачи (1999)

The Discrete Self-Adjoint Dirac Systems of General Type: Explicit Solutions of Direct and Inverse Problems, Asymptotics of Verblunsky-Type Coefficients and the Stability of Solving...

by Roitberg, I., Sakhnovich, A.
Published in Журнал математической физики, анализа, геометрии (2018)

Pseudo-Exponential-Type Solutions of Wave Equations Depending on Several Variables

by Fritzsche, B., Kirstein, B., Roitberg, I.Y., Sakhnovich, A.L.
Published in Symmetry, Integrability and Geometry: Methods and Applications (2015)