Browsing by Author "A. K. Jimoh"

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    Comparison of some numerical methods for the solution of fourth order integro-differential equations
    (2014-11) A. K. Jimoh; K. Issa
    The numerical methods for solving fourth order integro-differential equations are presented. The methods are based on replacement of the unknown function by power series and Legendre polynomials of appropriate degree. The proposed methods convert the resulting equation by some examples considered show that the standard collocation method proved superior to the perturbed collocation method. Two examples are considered to illustrate the efficiency and accuracy of the methods.
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    THE NEW TWO-PARAMETER EXPONENTIAL-GAMMA BASED DISTRIBUTION: PROPERTIES AND APPLICATION TO NON-COMMUNICABLE DISEASE DATA
    (Journal of Science and Technology, 2025-10-15) B. I. Sanni; S. A. Aderoju; A. D. Adeshola; A. K. Jimoh; R. K. Lamidi; E. J. Adeniyi
    This study introduces a novel lifetime distribution, termed the New Two-Parameter Exponential–Gamma (NTPEG) distribution, developed through an additive mixture framework to enhance flexibility in modeling lifetime and survival data. Fundamental structural properties, including moments, hazard rate behavior, and entropy, are derived and discussed. Parameters of the model are estimated via the maximum likelihood method, and simulation studies demonstrate the reliability and efficiency of the estimators. The practical utility of the NTPEG model is illustrated using survival data on non-communicable diseases, particularly among acute bone cancer patients. Comparative analyses with existing extensions of the Lindley distribution reveal that the proposed model provides superior fit and flexibility for complex real-world data. Overall, the NTPEG distribution represents a robust and versatile tool for researchers and practitioners in survival and reliability analysis.