African Journal of
Mathematics and Computer Science Research

  • Abbreviation: Afr. J. Math. Comput. Sci. Res.
  • Language: English
  • ISSN: 2006-9731
  • DOI: 10.5897/AJMCSR
  • Start Year: 2008
  • Published Articles: 257

Table of Content: March 2011; 4(3)

March 2011

A class of one-point zero-stable continuous hybrid methods for direct solution of second-order differential equations

  This paper considers the development of a class of one-point hybrid implicit methods for direct solution of general second order ordinary differential equations. The main predictors needed for the evaluation of the implicit methods are obtained to be of the same order with the methods at whatever hybrid point of collocation. The methods and their respective predictors are consistent and zero-stable....

Author(s): S. J. Kayode

March 2011

Application of multi criteria decision making technique to evaluation suppliers in supply chain management

  Supplier selection, the process of determining the suitable suppliers who are able to provide the buyer with the right quality products and/or services at the right price, at the right time and in the right quantities, is one of the most critical activities for establishing an effective supply chain. In other words, supplier selection is a multi-criteria decision making problem which includes both...

Author(s): Mohammad Saeed Zaeri, Amir Sadeghi, Amir Naderi, Abolfazl Kalanaki Reza Fasihy, Seyed Masoud Hosseini Shorshani, and Arezou Poyan

March 2011

Optimal packing of fm station progammes case study: Kaase Fm Station, Kumasi, Ghana

  A FM station has a pile of programmes being broadcast in the testing phase of the station.  The programmes consist of fixed and unfixed programmes. However the full complement of programmes has not been reached. To achieve full complement, the station wants to plan a new programme mix with fixed programmes retaining their original time slots. The rearrangement of the programmes is modeled as a...

Author(s): S. K. Amponsah, K. F. Darkwah and F. K. Awuah

March 2011

Semantic web - The future of the web

  The web has grown steadily since its inception in 1990. Websites developed today are now tagged as Web 2.0; that is, they are user oriented and allow distributed publishing. Web 2.0 still follows the principle of the early web, a system of interlinked documents without organization. To onus was on the developers to design web applications that allow user interaction. The semantic web is the next generation of...

Author(s): Kenekayoro Patrick T.

March 2011

Some inequalities of a formula of population size due to epidemics model problem

  In the present paper, we evaluate a formula of population size due to epidemics model problem for communicable diseases, in which the daily contact rate is supposed to be varied with population size N(t) that is large, so that it is considered as a continuous variable of time (t). Then, we obtain some inequalities of above analytic formula of population size that are useful to plot some graphs on population...

Author(s): Hemant Kumar

March 2011

A comparative study of a class of implicit multi-derivative methods for numerical solution of non-stiff and stiff first order ordinary differential equations

  This work describes the development, analysis, implementation and a comparative study of a class of Implicit Multi-derivative Linear Multistep methods for numerical solution of non-stiff and stiff Initial Value Problems of first order Ordinary Differential Equations. These multi-derivative methods incorporate more analytical properties of the differential equation into the conventional implicit linear...

Author(s): Famurewa O. K. E, Ademiluyi R. A. and Awoyemi D. O.

March 2011

Nonlinear analysis of a fractional reaction diffusion model for tumour invasion

  Mathematical models in general and Reaction Diffusion Models in particular have been rigorously studied and applied in different forms to explain situation in biomedical and allied sciences including the complex tumour microenvironment. They have been proven to be really significant in cancer research. The not so extensively known fractional reaction-diffusion model is presented in this research as a...

Author(s): Atabong T. A. and M. O. Oyesanya

March 2011

On best 1:1 codes for generalized quantitative-qualitative measure of inaccuracy

  In coding theory, generally, we come across the problem of efficient coding of messages to be sent over a noiseless channel and attempt to maximize the number of messages that can be sent through a channel in a given time. Therefore, we find the minimum value of a mean codeword length subject to a given constraint on codeword lengths. As the codeword lengths are integers, the minimum value lies between two...

Author(s): Priti Gupta, Niranjan and Hari Arora