Browsing Faculty of Science by Author "Sattar, M. Abdus"

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Eulerian Method for Third Order Linear Systems

Haque, Md. Abdul (University of Rajshahi, 2003)

In this thesis, we have studied the solutions of the various types of third order linear systems of ordinary differential equations. In chapter I, we have considered the third order linear homogeneous system with constant ...
KBM Asymptotic Method for third order Nonlinear Oscillations

Alam, Md. Shamsul (University of Rajshahi, 2000)

In most treatments or nonlinear oscillations hy perturbation method. only periodic oscillations are treated; transients are not considered. Krylov and Bogoliubov have used a perturbation method to discuss transients in the ...
On Some Approximate Solutions of Nonlinear Physical and Biological Problems

Uddin, Md. Alhaz (University of Rajshahi, 2010)

Most of the perturbation methods are developed to find the periodic solutions of nonlinear systems with small nonlinearities, transients are not considered. In 1947, first Russian scientists Krylov and Bogo Liubov introduced ...
On Some New Approximate Solutions of Fourth Order Nonlinear Differential Equations

Akbar, Md. Ali (University of Rajshahi, 2005)

Most of the perturbation methods are developed to find periodic solutions of nonlinear systems; transients are not considered. First Krylov and BogoLiubov introduced a perturbation method to discuss the transients in the ...

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