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Second Derivative Block Hybrid Methods for Solving Real Life Problems of Ordinary Differential Equations

Babangida Hassan Muhammad, Donald John Zirra, Adamu Wakili

Abstract

This paper outlined the development and application of a Second Derivative Block Hybrid Method for solving initial value problems arising from ordinary differential equations in physical science applications. The method incorporates second-derivative information into a block hybrid numerical framework to improve accuracy, stability and computational efficiency. The scheme was derived using a power series approximation together with interpolation and collocation techniques to obtain a continuous form of the method. The formulation allowed the simultaneous computation of solutions at multiple grid points within a single step, which enhances efficiency in the numerical integration of differential equations. The basic properties of the developed method included order, error constant, consistency, zero-stability, convergence and region of absolute stability which analyzed to determine its reliability and numerical performance. The theoretical analysis showed that the SDBHM has uniform order six, satisfied the conditions of consistency and zero-stability, hence, and converges according to the Dahlquist convergence theorem. To demonstrate the effectiveness of the method, numerical experiments were carried out on real-life problems from industrial chemistry, electrical engineering and applied mathematics, including ester hydrolysis, an RC electrical circuit model, and a stiff differential equation. The numerical results obtained were presented in tabular and graphical forms and compared with available analytic solutions. The results reveal that the method provides highly accurate approximations and stable numerical solutions, confirming that the second derivative block hybrid method is an efficient and reliable technique for solving ordinary differential equations arising in practical physical science problems.

Keywords

Second derivative block hybrid methodordinary differential equationsinitial value problemsnumerical methodsstiff differential equationsstability analysisphysical science applications. 1

References

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