Department of Mathematics, Statistics and Actuarial Sciences
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Recent Submissions

Doptimal Rotatable Central Composite Designs Constructed through Resolutions
(Mathematical Theory and Modeling, 2016)Response surface methodology is widely used for developing, improving, and optimizing processes in various fields. A design is of resolution 𝑅 if no 𝑝 factors effect is confounded with any other effect containing less ... 
DOptimal Designs for ThirdDegree Kronecker Model Mixture Experiments with an Application to Artificial Sweetener Experiment
(IOSR Journal of Mathematics, 2014)This study investigates some optimal designs in the third degree Kronecker model mixture experiments for nonmaximal subsystem of parameters, where Kiefer’s functions serve as optimality criteria. Based on the completeness ... 
An Introduction to Differential Geometry: The Theory of Surfaces
(Science Publishing Group, 2017)From a mathematical perspective, a surface is a generalization of a plane which does not necessarily require being flat, that is, the curvature is not necessarily zero. Often, a surface is defined by equations that are ... 
Multinomial Logit Modeling of Factors Associated With Multiple Sexual Partners from the Kenya Aids Indicator Survey 2007
(American Journal of Theoretical and Applied Statistics, 201505)The number of lifetime sex partners of an individual has an important effect on Human Immunodeficiency Virus (HIV) status of an individual; hence modeling multiple sexual partnerships is an essential component of any ... 
Differential Geometry: An Introduction to the Theory of Curves
(Science publishing group, 2017)Differential geometry is a discipline of mathematics that uses the techniques of calculus and linear algebra to study problems in geometry. The theory of plane, curves and surfaces in the Euclidean space formed the basis ... 
Optimal Slope Designs for Second Degree Kronecker Model Mixture Experiments
(Science publishing group, 2017)The aim of this paper is to investigate some optimal slope mixture designs in the second degree Kronecker modelbn for mixture experiments. The study is restricted to weighted centroid designs, with the second degree ...