Boundedness of Certain System of Second Order Differential Equations


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Authors: M. O. OMEIKE, A. A. ADEYANJU, D. O. ADAMS AND A. L. OLUTIMO

DOI: 10.46793/KgJMat2105.787O

Abstract:

This work is concerned with the ultimate boundedness of solutions of the system of vector differential equations

X˙ =  H (Y ),   Y˙ =  − F (X,  Y )Y  −  G (X ) + P  (t,X, Y ),

where t +, X = X(t), Y = Y (t) n, F : n × n n×n, G,H : n n and P : + × n × n n. By using a Lyapunov function as a basic technique, we prove that the solutions of the system of equations are ultimately bounded. In addition, result obtained includes and improves some related results in literature.



Keywords:

Boundedness, Lyapunov function, differential equations of second order.



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