Author: Grigorian, Gevorg Avagovich

Grigorian, Gevorg Avagovich: Properties of solutions of quaternionic Riccati equations. (English). Archivum Mathematicum, vol. 58 (2022), issue 2, pp. 115-132
Grigorian, Gevorg Avagovich: Oscillatory and non oscillatory criteria for the systems of two linear first order two by two dimensional matrix ordinary differential equations. (English). Archivum Mathematicum, vol. 54 (2018), issue 4, pp. 189-203