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Gabriel Asare Okyere

Publications (4)

Bivariate Copula Based Models for the Dependence of Maternal Mortality Ratio(MMR) on Gross Domestic Product(GDP) and Total Fertility Rate(TFR)

Gabriel Asare Okyere, Godfred Zaachi, Emmanuel K. Owusu-Mintah & Charles K. Amponsah · Journal of Advances in Mathematics and Computer Science · 2019

Global progress towards reducing high Maternal Mortality Rates (MMR) turned to be defeated by high maternal mortalities originating from developing countries. In rural Ghana, the lack of logistics, medical and laboratory equipment are among other key factors responsible for the h...

Open access Research Article 10.9734/jamcs/2019/v33i230172

Adaptive Robust Profile Analysis of a Longitudinal Data

Gabriel Asare Okyere, Silverius Kwasi Bruku, Richard Tawiah & Gilbert Biney · Journal of Advances in Mathematics and Computer Science · 2018

This paper uses nine winsorized scores in the adaptive test of Hogg, Fisher and Randles and deals with its extension to hypothesis testing in profile analysis of a balanced longitudinal data. Simulation studies are conducted to evaluate the efficiency of the adaptive test procedu...

Open access Research Article 10.9734/JAMCS/2018/42361

Adaptive Scheme for ANOVA Models

Gilbert Biney, Gabriel Asare Okyere & Abukari Alhassan · Journal of Advances in Mathematics and Computer Science · 2020

This paper deals with the concept of adaptive scheme and with an application to the Oneway ANOVA model under uncorrelated errors. Oneway ANOVA model is sensitive to nonnormality as well as variance heterogeneity. To overcome these problems, an adaptive scheme is proposed. The ada...

Open access Research Article 10.9734/jamcs/2020/v35i430266

Error Analysis of Meshfree Approximation in Nonlinear Black-Scholes Model

Godwin Onwona-Agyeman, Francis T. Oduro, Gabriel Asare Okyere & Awudu Obeng · Asian Journal of Probability and Statistics · 2020

The transaction cost model of Guy Barles and Halil Mete Soner is incorporated into the standard Black Scholes Equation. The resulting model is solved by a numerical method, called, the meshfree approximation using radial basis function. The errors produced by the scheme are discu...

Open access Research Article 10.9734/ajpas/2020/v8i330210