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Oscillatory and non oscillatory criteria for the systems of two linear first order two by two dimensional matrix ordinary differential equations
G. A. Grigorian
The Riccati equation method is used for study the oscillatory and non oscillatory behavior of solutions of systems of two first order linear two by two dimensional matrix different…
Oscillatory criteria for the second order linear ordinary differential equations in the marginal sub extremal and extremal cases
G. A. Grigorian
The Riccati equation method is used to establish three new oscillatory criteria for the second order linear ordinary differential equations in the marginal, sub extremal and extrem…
Oscillatory criteria for the second order linear functional - differential equations with locally integrable coefficients
Gevorg Avagovich Grigorian
The Riccati equation method is used to establish some oscillatory criteria for the second order linear functional - differential equations of multiple terms with locally integrable…
The behavior of solutions of the systems of two first order linear ordinary differential equations
G. A. Grigorian
The Riccati equation method is used for study the behavior of solutions of the systems of two linear first order ordinary differential equations. All types of oscillation and regul…