Browsing School of Mathematics, Statistics and Actuarial Sciences by Title
Now showing items 91-110 of 113
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Reachability in complete t-ary trees
(Annals of Mathematics and Computer Science, 2023-10-01)Mathematical trees such as Cayley trees, plane trees, binary trees, noncrossing trees, t-ary trees among others have been studied extensively. Reachability of vertices as a statistic has been studied in Cayley trees, plane ... -
Reachability results in labelled t-ary trees
(Open Journal of Mathematical Sciences, 2021)In this paper, we prove some new formulas in the enumeration of labelled t-ary trees by path lengths. We treat trees having their edges oriented from a vertex of lower label towards a vertex of higher label. Among other ... -
Recursive Relation for Zero In ated Poisson Mixture Distributions
(2017)The paper extends the work of Sarguta who derived recursive re- lations for univariate distributions by considering the ZIP continuous mixtures. The paper gives a recursive formular which can be used to evaluate the mixed ... -
Recursive Relation for Zero Inflated Poisson Mixture Distributions
(HIKARI Ltd, 2017)The paper extends the work of Sarguta who derived recursive re lations for univariate distributions by considering the ZIP continuous mixtures. The paper gives a recursive formular which can be used to evaluate the mixed ... -
Refined enumeration of 2-noncrossing trees
(Academic Publishing House, 2021)A 2-noncrossing tree is a connected graph without cycles that can be drawn in the plane with its vertices on the boundary of circle such that the edges are straight line segments that do not cross and all the vertices ... -
Refined enumeration of k-plane trees and k-noncrossing trees
(2022)A k-plane tree is a plane tree whose vertices are assigned labels between 1 and k in such a way that the sum of the labels along any edge is no greater than k+1. These trees are known to be related to (k+1)-ary trees, and ... -
Some Properties of the Essential Numerical Range on Banach Spaces
(HIKARI Ltd,, 2017)We study the properties of the essential algebraic numerical range as well as the essential spatial numerical range for Banach space operators. Mathematics Subject Classi cation: 47A10; 47A05; 47A53 -
Spatial Comparison and Quality Check of Farmer-recorded Daily Rainfall Data; A Case of Nyakach and Soin-sigowett, Kenya
(Science Publishing Group, 2020-01-09)Small scale farming is currently still heavily dependent on rainfall in developing nations. With the challenge of climate change, many innovations are proposed to help the farmers mitigate and adapt. The use of historical ... -
Spatial Comparison and Quality Check of Farmer-recorded Daily Rainfall Data; A Case of Nyakach and Soyain-sigowett, Ken
(Science Publishing Group, 2020-09-01)Abstract: Small scale farming is currently still heavily dependent on rainfall in developing nations. With the challenge of climate change, many innovations are proposed to help the farmers mitigate and adapt. The use of ... -
Spectra of Composition Groups on the Weighted Dirichlet Space of the Upper Half-Plane
(Springer, 2020)We prove that the group of weighted composition operators induced by contin uous automorphism groups of the upper half plane U is strongly continuous on the weighted Dirichlet space of U, Dα(U). Further, we investigate ... -
Spectral analysis of certain groups of isometries on Hardy and Bergman spaces
(Academic Press, 2017-12-15)Using the similarity theory of semigroups as well as spectral theory, we obtain the resolvents of the generators of strongly continuous groups of isometries on the Hardy and Bergman spaces. These groups are obtained as ... -
Statistical trend analysis of residential water demand in Kisumu City, Kenya
(Science Publishing Group, 2015-04-16)This study sought to analyse trend in the monthly water demand data series in Kisumu city at both seasonal and non-seasonal levels using the parametric method of Ordinary Least Squares (OLS) and non-parametric methods of ... -
A STUDY OF ATTITUDES OF TEACHERS AND PUPILS TOWARD THE TEACHING AND LEARNING Of M~THEMATICS RESPECTIVELY IN UPPER PRIMARY SCHOOLS IN MASIMBA EDUCATIONAL ZONE, IRIANYI DIVISION, KISII DISTRICT (KENYA) •
(University of Kenyatta., 1986)The purpose of the study was to identify the attitudes held by the primary school teachers and pupils toward the teaching and learning of Mathematics respectively. The study was done at Masimba Educational zone, Irianyi ... -
Supply, Demand, Equilibrium, Deterministic, Stochastic, Logistic and Differential Equations
(INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY SCIENCES AND ENGINEERING, 2014)In this paper, we use the Bernoulli Jump Diffusion (BJD) process to test for the existence and probability of jumps in the Kenyan interest rates. We test these using the Maximum Likelihood Estimation (MLE) method on the ... -
Temperature Distribution for Magnetohydrodynamic Flow in Straight Horizontal Elliptical Pipe
(Applied Mathematical Sciences, 2021)A study has been carried out on temperature distribution on Magnetohydrodynamic (MHD) fluid flow in a pipe of elliptical cross section. Fluid is electrically conducting, viscous and incompressible. Governing equations are ... -
Three Dimensional Mathematical Models for ConvectiveDispersive Flow of Pesticides in Porous Media
(IJESC, 2018)The transport of solutes through porous media where chemicals undergo adsorption or change process on the surface of the porous materials has been a subject of research over years. Usage of pesticides has resulted in ... -
Training of lecturers at Maseno University, Kenya
(Proceedings of the ICOTS8 conference, 2010)Lecturers in Kenyan universities usually start their work without any prior training on how to teach students. Hence the teaching tends to be traditional and new training techniques are rarely implemented. For effective ... -
Using e-learning to engage Mathematics and Statistics Students in a Kenyan University
(12th International Congress on Mathematical Education, 2012)Two introductory courses to statistics were taught to first year mathematics and statistics students as part of an initiative to introduce them to computers. The courses were offered using a blended approach which included ... -
Various notions of orthogonality in normed spaces
(Elsevier, 2013-09-01)In this paper, we present various notions and aspects of orthogonality in normed spaces. Characterizations and generalizations of orthogonality are also considered. Results on orthogonality of the range and the kernel of ... -
Velocity Profile for Magnetohydrodynamic Flow in Straight Horizontal Elliptical Pipe
(Applied Mathematical Sciences, 2021)Velocity profile for Magnetohydrodynamic (MHD) fluid flow in a straight long pipe with elliptical cross section has been investigated. Governing equations are partial differential equations comprising Ohm’s law of ...