Volume 1, Issue 3 (2005) | Journal of Mathematics and Statistics

Some Conditions for P-Solubility of Finite Groups

Jehad Jumah Jaraden — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.168.171

A subgroup H of a group G is c-subnormal in G if G has a subnormal subgroup T such that HT=G and T 3 H ⊆ HG.[1] Using this concept, in Jaraden obtain[1] some new conditions for solubility of a fin...

Introduction to the Besov Spaces and Triebel-Lizorkin Spaces for Hermite and Laguerre expansions and some applications

A. Iris — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.172.179

We introduced new definitions of Besov spaces and Triebel-Lizorkin spaces associated with multidimensional Hermite expansions and multidimensional Laguerre expansions. We showed that the set of p-inte...

On the Variances of Distribution of the Sample Range of Order Statistics from a Discrete Uniform Distribution

Sinan Calik — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.180.183

The purpose of this study was to obtain algebraic expressions for n up to 20 for the variances of distribution of the sample range of order statistics from a discrete uniform distribution.

A Two Dimensional Infinite Element Model to Study Temperature Distribution in Human Dermal Regions due to Tumors

K. R. pardasani — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.184.188

In this study, a two dimensional infinite element model has been developed to study thermal effect in human dermal regions due to tumors. This model incorporates the effect of blood mass flow rate, me...

A General Probability Distribution Using Burmann Power Series

Richard F. Patterson — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.189.193

The goal of this study is to present a general power series distribution that exhibits the properties of some well known distributions. To accomplish this goal we examine an infinite sequence of indep...

Modeling Traffic Flow and Management at Un-signalized, Signalized and Roundabout Road Intersections

R. Kakooza — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.194.202

Traffic congestion continues to hinder economic and social development and also has a negative impact on the environment. A simple mathematical model is used to analyze the different types of road int...

Hemisphere Sizing from Linear Intercept Measurement

Wilfried Gille — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.203.211

The stereological problem of unfolding the hemisphere radius distribution from the chord length distribution is analyzed. Let a stationary isotropic process of hemispheres be given. The hemispheres ha...

On Asymptotics of Lp Extremal Polynomials on a Complex Curve Plus an Infinite Number of Points

Yamina Laskri — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.212.216

We study, for all p>0 and under certain conditions the asymptotic behavior of Lp extremal polynomials with respect to the measure α=β+Y. Where, β denotes a positive Szegö measure on the closed rec...

Mathematical Model Mathematical Models for the Dynamics of Tuberculosis in Density-dependent Populations: The Case of Internally Displaced Peoples' Camps (IDPCs) in Uganda

A. Ssematimba — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.217.224

Mathematical models are formulated to establish the conditions (restrictions) on the size of the area occupied required minimizing and thereafter eradicating tuberculosis. Both numerical and qualitati...

Nonlinear Growth Models for Modeling Oil Palm Yield Growth

Azme Khamis — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.225.233

This study provided the basic needs of parameters estimation for nonlinear growth model such as partial derivatives of each model, determination of initial values for each parameter and statistical te...

On the Prime Radical of a Hypergroupoid

Gürsel Yeşilot — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.234.238

In this study, we give definitions of a prime ideal, a s-semiprime ideal and a w-semiprime ideal for a hypergroupoid K. For an ideal A of K we show that radical of A (R(A)) can be represented as the...

Creating Improved Models of Business Processes Through Statistical Analysis of Customer Orders with Multiple Types of Complexity

Raschid Ijioui — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.239.245

To gain a better understanding of the internal work processes in service-oriented supply chains, it is very important to design models that are able to realistically describe the components of the sup...

Numerical Ultimate Ruin Probabilities under Interest Force

Juma Kasozi — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.246.251

This work addresses the issue of ruin of an insurer whose portfolio is exposed to insurance risk arising from the classical surplus process. Availability of a positive interest rate in the financial w...

A Total Productivity PCA Model for Assessment and Improvement of Electrical Manufacturing Systems

Ali Azadeh — 2005-09-30

Journal of Mathematics and Statistics, Published online: 30 September 2005; doi:10.3844/jmssp.2005.252.256

This study presents a framework for assessment of electrical manufacturing systems based on a total machine productivity approach and multivariate analysis. Furthermore, the total model is developed ...