S. A. Okunuga

University of Lagos

Publishing since 1999, latest 2026

Numerical Analysis
Computational Theory and Mathematics
Electrical and Electronic Engineering
Modeling and Simulation
Computational Mechanics
Statistical and Nonlinear Physics

Publications: 301999–2026
Citations: 154to those papers
h-index: 7i10-index 6
Field-weighted impact: 0.741.00 is the world average
World top 10%: 7%2 of 30 scored papers
Open access: 70%21 papers free to read

3 other works — preprints, datasets and the like — are listed but not counted.

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Career

On their papers

Every institution they have given on a paper.

Publications

30 in all

L-stable Implicit Two-Step Modified Extended Hybrid Block Backward Differentiation Formulae for Solving Nonlinear Second-Order Differential-Algebraic Equations of Higher Indexes
2026Nigerian Journal of PhysicsJournalOpen accessSenior author0 citations10.62292/njp.v35i2.2026.526
Neural ordinary differential equations for parameter estimation, simulation and forecasting of infectious disease dynamics: Applications to HIV/AIDS and malaria models

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Numerical Analysis2997%
Computational Theory and Mathematics1240%
Electrical and Electronic Engineering1240%
Modeling and Simulation930%
Computational Mechanics620%
Statistical and Nonlinear Physics310%
Applied Mathematics27%
Aerospace Engineering13%
Public Health, Environmental and Occupational Health13%

Health Sciences
Physical Sciences

Topics most written on

Numerical methods for differential equations28
Differential Equations and Numerical Methods12
Electromagnetic Simulation and Numerical Methods12
Matrix Theory and Algorithms10
Fractional Differential Equations Solutions8
Advanced Numerical Methods in Computational Mathematics6
Iterative Methods for Nonlinear Equations3
Model Reduction and Neural Networks3
Differential Equations and Boundary Problems2
Computational Fluid Dynamics and Aerodynamics1
COVID-19 epidemiological studies1
Mathematical and Theoretical Epidemiology and Ecology Models1

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

30% of their papers have a co-author abroad

papers co-written1234567Home

Most frequent partner countries

China4
Spain4
United States4
Cyprus1
Lebanon1
Malaysia1
Pakistan1

Papers with at least one author in that country.

Institutions written with most

Universidad de SalamancaES4 papers
Nanjing Agricultural UniversityCN3 papers
Austin Peay State UniversityUS3 papers
Yaba College of TechnologyNG2 papers
Lagos State UniversityNG2 papers
Mehran University of Engineering and TechnologyPK1 paper
Mississippi State UniversityUS1 paper
Near East UniversityCY1 paper
Universiti Putra MalaysiaMY1 paper
Harbin Engineering UniversityCN1 paper

Where they publish

Computational and Applied Mathematics3
Afrika Matematika2
Ife Journal of Science2
International Journal of Computer Mathematics2
International Journal of Pure and Apllied Mathematics2
Nigerian Journal of Mathematics and Applications2

Development goals addressed

From each paper’s title and abstract

3Good health and well-being1

Most cited

Seventh order hybrid block method for solution of first order stiff systems of initial value problems
Journal of the Egyptian Mathematical Society
202021 citationsWorld top 10%Open access · Hybrid
A Three-Stage Multiderivative Explicit Runge-Kutta Method
American Journal of Computational Mathematics
201321 citationsOpen access · Diamond
Boundary value technique for initial value problems with continuous second derivative multistep method of Enright

2026Ife Journal of ScienceJournalOpen accessSenior author0 citations10.4314/ijs.v28i2.2

One Step Adapted Hybrid Second Derivative Block Method for Initial Value Problems with Oscillating Solutions

2022International Journal of Applied and Computational MathematicsJournalSenior author0 citations10.1007/s40819-022-01358-6

A HIGHER ORDER TRIGONOMETRICALLY-FITTED METHOD FOR SECOND ORDER NONLINEAR PERIODIC PROBLEMS

2021Journal of Fundamental and Applied SciencesJournalOpen accessSenior author1 citation10.4314/jfas.v13i2.23

Seventh order hybrid block method for solution of first order stiff systems of initial value problems

2020Journal of the Egyptian Mathematical SocietyJournalOpen accessSenior author21 citations10.1186/s42787-020-00095-3

Block Third Derivative Trigonometrically-Fitted Methods for Stiff and Periodic Problems

2020Journal of the Nigerian Society of Physical SciencesJournalOpen accessSenior authorCorresponding6 citations10.46481/jnsps.2020.33

Computation of First order Delay Differential Equations via Simpson Block Method

2020FUOYE Journal of Engineering and TechnologyJournalOpen accessSenior author1 citation10.46792/fuoyejet.v5i2.514

Third Derivative Block Hybrid Obrechkoff Methods

2020Nigerian Journal of Mathematics and ApplicationsJournalOpen accessSenior author0 citations10.67897/njma.2020.e9pigtpt

L0 Stable Trigonometrically Fitted Block Backward Differentiation Formula of Adams Type for Autonomous Oscillatory Problems

2017International Journal of Applied Physics and MathematicsJournalOpen accessFirst authorCorresponding1 citation10.17706/ijapm.2017.7.2.128-133

Milne’s Implementation on Block Predictor-corrector Methods

2016Journal of Applied SciencesJournalOpen access8 citations10.3923/jas.2016.236.241

A STIFFLY STABLE SECOND DERIVATIVE BLOCK MULTISTEP FORMULA WITH CHEBYSHEV COLLOCATION POINTS FOR STIFF PROBLEMS

2014International Journal of Pure and Apllied MathematicsJournalOpen accessSenior author3 citations10.12732/ijpam.v96i4.4

BLOCK METHOD FOR NUMERICAL SOLUTION OF DIFFERENTIAL-ALGEBRAIC EQUATIONS WITH HESSENBERG INDEX-3

2014International Journal of Pure and Apllied MathematicsJournalOpen accessSenior author2 citations10.12732/ijpam.v93i2.5

A Three-Stage Multiderivative Explicit Runge-Kutta Method

2013American Journal of Computational MathematicsJournalOpen accessSenior author21 citations10.4236/ajcm.2013.32020

A fourth order composite two-step method for stiff problems

1999International Journal of Computer MathematicsJournalFirst authorCorresponding7 citations10.1080/00207169908804833

African Journal of Science Technology Innovation and Development1

Ain Shams Engineering Journal1

How it can be read

70% free to read

Diamond 4 · 13%Free to read and to publish
Gold 2 · 7%In an open-access journal
Hybrid 6 · 20%Open in a subscription journal
Bronze 6 · 20%Free to read, no open licence
Green 3 · 10%A copy in a repository
Closed 9 · 30%Behind a paywall

Who funds it

4 of 30 papers name a funder

Tertiary Education Trust Fund2
Covenant University1
Fonds National de la Recherche Luxembourg1
Texas Emerging Technology Fund1
Universidad de Salamanca1

Computational and Applied Mathematics

A functionally-fitted block hybrid Falkner method for Kepler equations and related problems

Computational and Applied Mathematics

202311 citationsOpen access · Bronze