Browsing PHDDepartment of Mathematics by Title
Now showing items 524 of 25

Heat and mass transfer past a semi  infinite vertical porous Plate in MHD flows in turbulent boundary layer
(2019)Turbulent flows in electrically conducting media (MHD) remains one of the last unresolved problems in engineering industry and classical physics, but has general importance for the evolution of astro and geophysical ... 
Implementation of a modified procesi algorithm to compute covariants of binary forms of up to degree five and their relations
(Kenyatta University, 201611)In his book (Procesi,C., 2007), Claudio Procesi suggested a new algorithm for computing covariants of binary forms under the action of SL(2;C), based on an iterative computations of covariants of the simpler group U+. ... 
Investigating Sedenion Extension Loops and Frames of General Hypercomplex Numbers
(20130321)A sequence of algebras over the field of real numbers can be constructed, each with twice the dimension of the previous one. The algebra constructed by doubling complex numbers is the 22  dimensional quaternions. Next ... 
Modelbased non parametric regression estimation of the finite population total under twostage cluster sampling
(20110721)A modelbased nonparametric regression estimator for the finite population total under twostage sampling is proposed. In stage one, a sample of clusters is obtained and in stage two, sub samples of elements within each ... 
Modelling Jiggers Infestation and Interventions in Humans: A Case Study of Murang'a County, Kenya
(Kenyatta University, 202006)Tungiasis is a parasitic skin disease caused by jiggers, also known as sandeas. The disease predominantly a ects impoverished populations living in SubSaharan Africa, the Caribbean and South America.In areas especially ... 
Numerical Analysis of the Thermophysical Properties of Hybrid Nanofluids for Industrial Use
(Kenyatta University, 2022)Hybrid nanofluids engineered using two or more different types of nanoparticles suspended in the base fluid have numerous industrial and engineering applications. The applications range from heat transfer (coolant) fluids ... 
A numerical investigation of turbulent natural convection in a 3d enclosure using kw SST model and piso method
(Kenyatta University, 201610) 
On the spectrum of the cesaro operator
(20120524)This thesis consists of four chapters. In chapter one, we determine the most general continuous linear functional f X, where X is any semiconservative BKspace with +) as its ... 
Phytochemical Analysis, AntiInflammatory Activity, Antioxidant Activity and Toxic Effects of Aqueous Root Extract of Launaea CORNUTA (Hochst. Ex Oliv. & Hiern.) Evans Kapanat Akimat (Bs.C)
(Kenyatta University, 2022)Antiinflammatory, antinociceptive and antioxidant drugs have alleviated the agony of millions of people, especially in the developing countries where management of inflammation remains a big challenge. Nonetheless, despite ... 
Quantile Autoregression and its application to Financial Risk Management and Portfolio Optimization
(20140901)Increasing globalization, complexity of capital markets and the expanding range of exotic financial instruments have made financial risk management difficult to evaluate. As a consequence, a rise in use of more sophisticated ... 
Ranks and subdegrees of the cyclic group, the dihedral group and the affine group and associated suborbital graphs
(Kenyatta University, 201511) 
Ranks and subdegrees of the symmetric groups sn acting on ordered relement subsets
(20120413)The action of the symmetric group S n on ordered subsets from the set X = { 1, 2, ... , n} is an aspect that seems to have received little attention for a long time. Most studies have focused on the action of S; on unordered ... 
Robust variance estimation for finite population sampling
(20120608)After a sample has been obtained the statistic of interest can be computed. The next step (and a ore formidable one) is the assessment of the accuracy (precision) of the resulting statistic. The most commonly used measure ... 
Simulating Pressure Distribution of a Horizontal Well in an oil Reservoir Subject to Single Edged and Bottom Constant Pressure
(Kenyatta University, 2022)In this study the pressure distribution in an oil reservoir with a horizontal well is investigated. A horizontal well with singleedged and constant bottom pressure is outlined. A reservoir bounded with two constant pressure ... 
Simulating the Effects of Dam Breakage on the Downstream Topography: Morphological Evolution of Mounds and a Furrow
(Kenyatta University, 201512)In this work we apply a nite volume discretization technique based on a relaxation scheme to simulate the morphological evolution of the topography as a result of a dam break, that causes ooding downstream of the ... 
Some Aspects of MHD Flows with Hall and IonSlip Currents
(20120105)The purpose of this thesis is to give the basic assumption and the formulation of the theory of the flow problems of megnetohydrodynamics (MHD), as well as to the various methods of solving these problems. ''An explicit ... 
Some investigations on singular cauchy problems
(20111117)The purpose of our study is to get a solution to the Cauchy problem of (i) The wave equation in ndimension space Rn which is effectively a good example of regular Cauchy problems (ii) The Euler Poisson Darboux equation ... 
A study of junior secondary school pupils competence in selected processes of science
(20120530)Junior secondary school pupils were tested in four processes of science. The test subjects consisted of a total of 516 students. There were 113 male second form students, 143 female second formers, 131 male third form ... 
Study of Projective Curvature Tensor, 𝑾𝒋𝒌𝒉𝒊(𝒙,𝒙̇) in BiRecurrent Finsler Space, 𝟐𝑹−𝑭𝒏
(Kenyatta University, 2021)The Weyl (W) projective curvature tensor, 𝑊𝑗𝑘ℎ𝑖(𝑥,𝑥̇) has properties that have a wide range of applications in various fields but are still not easy to understand in a fundamental way since 𝑊𝑗𝑘ℎ𝑖(𝑥,𝑥̇) is a ... 
Suborbital graphs of the groups Cn ,Dn and UP and graphs whose automorphism groups contain the permutation groups Cn and Dn
(Kenyatta University, 201805)