School of Biological, Physical, Mathematics & Actuarial Sciences: Recent submissions
Now showing items 61-80 of 246
-
Effect of Sampling Bias on the Family of Exponential Random Graph Models
(International Journal of Statistics and Applied Mathematics, 2019)There is increased use and application of exponential random graphs emanating from use of big data and other techniques. This study sought to establish how sampling bias affects the exponential random graphs. This study ... -
Forecasting Monthly Sugar Cane Yields Using Box-Jenkin’s Predictive Models in Kenya
(International Journal of Statistics and Applied Mathematics, 2019-10-24)Sugarcane is the main raw material in the production of sugar in Kenya. The supply of sugarcane affects directly the quantity of sugar supplied in the markets. Low supply of sugarcane leads to a decline in the amount of ... -
Survival Analysis of Broilers in Two Poultry Farms in Kaloleni Sub County
(International Journal of Statistics and Applied Mathematics, 2018)This research is about a survival analysis on broilers in two poultry farms in Kaloleni sub-county. Chapter one gives an insight into the introduction of the paper, chapter two discusses the methodology used, chapter three ... -
Sensitivity Analyses of Population Projection Matrix of Cestrum Aurantiacum
(Kenya Forestry Research Institute/Jaramogi Oginga Odinga University of science and Technology., 2020)The Lefkovitch stage specific matrix population models are divided into discrete stage classes defined by a growth variable such as size, height and diameter at breast height for trees. In matrix model, the deterministic ... -
Extensions of Lefkovitch Matrix for Modeling Invasive Cestrum Aurantiacum Population Dynamics
(KEFRI/, Jaramogi Oginga Odinga University of science and Technology., 2020)Modeling of invasive species using stage based matrix methods can be exploited to understand population dynamics of plants using stage based Leftkovitch matrix models. This study reviewed and extended the stage based matrix ... -
Recurrent Malaria in Kenya: Survival Distribution and Equality of Survival Distribution
(ResearchGate, 2017-12)Malaria is a leading cause of morbidity and mortality in Kenya, mostly affecting the rural poor, especially young children and pregnant women. Most clinical studies in malaria involve a number of equally important endpoints. ... -
Fitting a Markovian Queuing Model to Bus Park Revenue Collection Point in Kisii Town, Kenya
(International Journal of Statistics and Applied Mathematics, 2019)In queuing theory one deals with the mathematical analysis of the performance of queuing systems. In our daily lives customers encounter queues while seeking services in institutions. The increase in the number of customers ... -
Modeling Household Water Demands Using Sinusoidal Models
(International Journal of Statistics and Applied Mathematics, 2019)Household water in Kenya is used in agricultural activities, industrial activities and other uses. A lot of water is consumed by indoor appliances. The water management strategy affects the household demand for water. The ... -
Spatial Motion of Multi-Pendula Systems
(International Journal of Science and Research, 7/7/2017)A multiple chain pendula system constrained to move in space has been studied within the framework of a generalized coordinate system by using the Lagrangian formalism. Equations of motions for many body pendula systems ... -
On Tensor Products and Elementary Operators
(Core, 2018)In this paper we describe operator systems and elementary operators via tensor products. We also discuss norms of elementary operators. -
Wilson-Theta Algorithm Approach to solution of Dynamic Vibration Equations
(ResearchGate, 2014)In this paper, we examine conservative autonomous dynamic vibration equation, x¨ = − tanh2 x, which is time vibration of the displacement of a structure due to the internal forces, with no damping or external forcing. ... -
Lie Symmetry Solution of Fourth Order Nonlinear Ordinary Differential Equation: (yy'(y(y') -1)'')'=0
(International Journal of Multidisciplinary Sciences and Engineering, 2017-10)The equation F(x, y, y, y, y, y (4)) 0 is a one-space dimension version of wave equation. Its solutions can be classified either as analytic or numerical using finite difference approach, where the convergence of ... -
Determining Equations of Fourth Order Nonlinear Ordinary Differential Equation
(ResearchGate, 2018)Determining Equations are linear partial differential equations. The equation to be solved is subjected to extension generator. The coefficient of unconstrained partial derivatives is equated to zero and since the equations ... -
Nonzero Lie Brackets of Third Order Nonlinear Ordinary Differential Equation
(ResearchGate, 2018-06)Lie symmetry analysis of Ordinary Differential Equation can be used to obtain exact solution of the equation of the form F (x, y, y’ y’’ y’’’) = 0. In this paper we use Lie Symmetry analysis approach to obtain the nonzero ... -
Drug and Substance Use and Its Predictors among the Youth in Nyamira Sub County, Nyamira
(www.strategicjournals.com, 2018-11-11)Substance and drug use is one of the emerging public health problems among the youth in Kenya. Moreover, it is associated with a myriad of medical effects including psychiatric problems, organ failures in addition to ... -
Norm-Attainability and Range-Kernel Orthogonality of Elementary Operators
(Communications in Advanced Mathematical Sciences, 12/24/2018)Various aspects of elementary operators have been characterized by many mathematicians. In this paper, we consider norm-attainability and orthogonality of these operators in Banach spaces. Characterizations and generalizations ... -
Lie Symmetry Analysis of Modified Diffusive Predator-prey Competition System of Equations
(International Journal of Multidisciplinary Sciences and Engineering, 2020)In this paper, a nonlinear fourth order evolution equation is investigated by the Lie symmetry analysis approach. All the geometric vector fields and the Lie groups of the evolution equation are obtained. Finally, the ... -
On Norm Inequalities and Orthogonality of Commutators of Derivations
(Arxvi, 2019-03-25) -
Properties of Spectrally Bounded Compact Elementary Operators
(DOI: 10.47443/cm.2021.0012, 2021-03-31)Spectrally bounded compact elementary operators on dense irreducible subalgebras of C ∗ -algebras are characterized. Also, it is shown that left multiplications, right multiplications, generalized derivations and basic ... -
On Centre Properties of Irreducible Subalgebras of Compact Elementary Operators
(doi:10.30538/psrp-oma2020.0065, 2020)In this paper, we characterize the centre of dense irreducible subalgebras of compact elementary operators that are spectrally bounded. We show that the centre is a unital, irreducible and commutative C∗ -subalgebra. ...
