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: 248

Table of Content: January 2011; 4(1)

January 2011

Ample invertible sheaves on the irreducible components of an exceptional locus

  Resolving the -dimensional -Singularity, an exceptional locus will be obtained (), where are the irreducible components of , and they are isomorphic to. These are invertible sheaves. We study the conditions to be ample, using the known Kleiman's Criterion Kleiman (1966).   Key words: Simple singularity, exceptional locus, ample sheaves.  

Author(s): D. Alexiou and Farhan Ismail

January 2011

A mathematical approach to transportation related data of South Assam for the optimal age of replacement of a vehicle and daily expenditure minimization

  This paper deals with the replacement issue of an Omni bus plying on Silchar–Guwahati route in India under government and private travel agencies and daily expenditure minimization of travel agencies. In this paper, effort has been given to study the age at which a bus should be replaced on the basis of various expenditure on it. It also attempts to calculate how to minimize daily expenditure of a bus...

Author(s): Nabendu Sen, Banashri Sinha and Tanmoy Som

January 2011

Location of ambulance emergency medical service in the Kumasi Metropolis, Ghana

  Location of emergency medical services such as an ambulance in urban locations has been under study for a long time. Several approaches have been employed in solving this very sensitive location problem. In this paper, a case study of the ambulance location problem in an urban setting as the Kumasi metropolis in Ghana is solved. The Non-Linear Maximum Expected Covering Location Problem (MEXCLP) implemented by...

Author(s): S. K. Amponsah, Gordon Amoako, K. F. Darkwah and E. Agyeman

January 2011

Modified extended median test

  This paper proposes a modified extended median test that adjusts for the effects of any possible ties in the specific data. The proposed method is illustrated with data. A comparison with the extended median test suggests that the proposed method is at least as powerful as the extended median test.In this study, the proposed extended median test presents an example indicating that the...

Author(s):    Oyeka I. C. A. and Uzuke C. A.   

January 2011

Testing the equality of central tendency measures using various trimming strategies

  Ft  statistic test is a non classical method of comparing two or more groups. This statistical procedure is able to handle problems of sample locations when non-normality occurs but the homogeneity of variances assumption still applies. This method is not robust under the existence of variance heterogeneity. To make this test less sensitive when either one or both of the common assumptions are violated,...

Author(s): Zahayu Md Yusof, Suhaida Abdullah, Sharipah Soaad Syed Yahaya  and Abdul Rahman Othman