الأبحاث

عبد الرحيم محمد عبده النجار

أستاذ متفرغ

كلية العلوم الرياضيات

A perturbation Method for a set of a quasi-linear Oscillatory Systems with Variable Natural Frequency.

1985

Existence and Determination of Superharmonic Synchronizations as Solution, of a Quasi-Linear Physical System

1985

البحث الكامل الملخص

Analytical studies for even subharmonic synchronization of a weakly nonlinear conservative physical system

1982

Determination of harmonic and subharmonic synchronization of a weakly non-linear conservative physical system

1982

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Mathematics