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O. A. Akinfenwa

Department of Mathematics, University of Lagos Yaba, Lagos, Nigeria

akinolu35@yahoo.com
3 Publications
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17 Downloads

Publications 3

1
Research Article Vol. 30, Issue 1

Third Derivative Block Hybrid Obrechkoff Methods

B. I. Akinnukawe*, O. A. Akinfenwa, S. A. Okunuga

This paper presents a family of Third Derivative Block Hybrid Obrechkoff Methods of Adams-type for solving stiff Initial Value Problems (IVPs). Multistep collocation techniques, with power series as basis function, are employed for the derivation of the continuous form of the hybrid methods. The continuous Hybrid Obrechkoff Methods are used to gene...

DOI: 10.67897/njma.2020.e9pigtpt
Mar, 2020 Vol. 30, Issue 1 16 views 7 downloads
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2
Research Article Vol. 25, Issue 1

Block Hybrid Method for Solution of Fourth Order Ordinary Differential Equations

O. A. Akinfenwa*, H. A. Ogunseye, S. A. Okunuga

In this paper a block hybrid method of order seven for the direct solution of fourth-order ordinary differential equations is presented. The derivation of the method uses interpolation and col-location procedures to obtain the main method and additional methods from the same continuous scheme. The continuous representation of the integrators permit...

DOI: 10.67897/njma.2016.ejw7okcl
Jun, 2016 Vol. 25, Issue 1 5 views 6 downloads
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3
Research Article Vol. 23, Issue 1

A Two Step Lo- Stable Second Derivative Hybrid Block Method for Solution of Still Initial Value Problems

O. A. Akinfenwa*, Ali A., OSUNKAYODE KABIR

We present a two step Lo-stable second derivative hybrid block method of order eight for the direct solution of still Initial Value Problems (IVPs). The main method and additionalmethods are obtained from the same continuous scheme derived using interpolation and collocation technique to form the block method. The stability properties of the block ...

DOI: 10.67897/njma.2014.61w20d13
Jun, 2014 Vol. 23, Issue 1 3 views 4 downloads
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