Department of Mathematics and Physics: Recent submissions
Now showing items 21-34 of 34
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Classifying fuzzy subgroups of the abelian group Zp1× Zp2×···× Zpn for distinct primes p1, p2,···, pn
(2017)In this paper, we classify the fuzzy subgroups of the group G= Zp1× Zp2×···× Zpn where p1, p2,···, pn are distinct primes and n∈ Z+. We develop an algorithm for counting the distinct fuzzy subgroups of the group G using ... -
Sum Construction of Automorphic Symmetric Balanced Incomplete Block Designs
(International Journal of Scientific Research in Mathematical and Statistical Sciences, 2020)- In this study Sum construction method of automorphic symmetric balanced incomplete block designs has been presented in details. Efficiency of a test design used in the Sum construction of automorphic symmetric ... -
Semi-Parametric Modeling of Churn Confounding Competing Risks Using Time-Dependent Covariates Among Mobile Phone Subscribers in Kenya
(Istanbul University, 2023-06-01)Mobile phone service providers are currently experiencing high churn rates. As a result, service providers are trying to develop ways to predict churn rates and uncover why subscribers’ churn occurs. However, the task of ... -
Convergence of the Laplace and the alternative multipole expansion approximation series for the Coulomb potential
(2023-06-20)Multipole expansion is a powerful technique used in many-body physics to solve dynamical problems involving correlated interactions between constituent particles. The Laplace multipole expansion series of the Coulomb ... -
Relative Efficiency of Sum Constructed Automorphic Symmetric Balanced Incomplete Block Designs
(ResearchGate, 2020)Several construction methods have been introduced to build the elements of BIBDs’ for specific parameters, with different techniques suggested for testing their existence, still no general technique to determine the ... -
Modeling of Petroleum Prices in Kenya Using Autoregressive Integrated Moving Average and Vector Autoregressive Models
(2021)The demand for crude oil and petroleum products in Kenya has been increasing very fast over the past twenty years. This is mainly because this particular commodity is used in many sectors of the country’s economy. ... -
The application of logistic regression in modeling of survival chances of HIV-positive patients under highly active antiretroviral therapy (HAART): A Case of Nyakach District, Kenya
(Basic Research Journal, 2014)In Kenya the number of persons requiring antiretroviral Therapy (ART) in 2012 was over 90,000 while globally more than 1.4 million were under ART in the year 2012. Though ART treatment has decreased mortality of HIV associated ... -
The upper triangular algebra loop of degree 4
(Charles University in Prague, Faculty of Mathematics and Physics, 2014)A natural loop structure is defined on the set $U_4$ of unimodular upper-triangular matrices over a given field. Inner mappings of the loop are computed. It is shown that the loop is non-associative and nilpotent, of class ... -
COMPUTING FUZZY SUBGROUPS OF SOME SPECIAL CYCLIC GROUPS
(Korean Mathematical Society, 2019)In this paper, we discuss the number of distinct fuzzy subgroups of the group ${\mathbb{Z}}_{p^n}{\times}{\mathbb{Z}}_{q^m}{\times}{\mathbb{Z}}_r$, m = 1, 2, 3 where p, q, r are distinct primes for any $n{\in}{\mathbb{Z}}^+$ ... -
APPLICATION OF RCBD IN DETERMINING DEVIATION OF PRICES OF BASKET COMMODITIES IN SUPERMARKETS IN MOMBASA COUNTY
(Mathematical Theory and Modeling, 2018)This study reveals the significant deviation, correlation and statistical significance and variance on the prices of the commodities charged by the four supermarkets in Mombasa County. A statistical model, Randomized ... -
CdxZn1-xS/Pbs Thin film solar cell
(Global Advanced Research Journal of Engineering, Technology and Innovation, 2014)In this work, n-type CdxZn1-xS and p-type Pbs layers were optimized through chemical solution technique for solar cells. CdxZn1-xS was grown at 82°C while Pbs layers were grown at room temperature utilizing aqueous conditions. ... -
PfEMP1 DBLα Sequence Tags in Genomic DNA of P. falc iparum Field Isolates from Two Malaria Endemic Sites in Ke nya
(Journal of Natural Sciences Research, 2015)Malaria caused by Plasmodium falciparum remains a major cause of childhood morbidity and mortality in sub-Saharan Africa. PfEMP1 protein, coded for by a family of about sixty variant var genes, is a parasite protein found ... -
Modeling Damping for a Loaded Spring in an Acoustic Liquid Media
(Engineering International, 2016)Free vibrating motion can take place in an acoustic media. This motion can be steady hence have constant periodic variations or unsteady and thus experience light damping or heavy damping. We give a modeled analysis of ... -
Alternative Multipole Expansion of the Electron Correlati on Term
(arXiv.org, 2017)An alternative multipole expansion of the correlation term is derived. Modified spherical Bessel type functions which simplify as a summation of multiple ord ers of basic trigonometric functions are generated from this ...