Browsing Mathematics by Issue Date

The Seasonal Occurrence of Fascioliasis and Some other Helminthic Diseases of Sfleep in Four Selected Sites in Ethiopia

Lemma, Brook (Addis Ababa University, 1983-12)

Ethiopia. situated in the Ilorn of Africa. shows wide variation in topography climate and land use distribution. It has a high population of livestock. However. the prevalence of a number of important diseases has impeded ...

Factors Influencing the Implementation of Mathematics Curriculum in General Secondary Schools in East Showa Zone of Oromia Region

Bayissa, Daba (Addis Ababa University, 2000-03)

The purpose of this study was to investigate the major factors that influence the implementation of mathematics curriculum in general secondary schools. Attempts have been made to examine: - the attitude of mathematics ...

Diversity, Distribution and Relative Abundance of the Avian Fauna of Chebera Churchura National Park, Ethiopia

W/Yohannes, Dereje (Addis Ababa University, 2006-06)

The aim of this study is to investigate the diversity, relative abundance and habitat association of the avian species in Chebera Churchura Nation Park (CCNP). The study was carried out using the method of Timed-Species-Count ...

Three-Person Cooperative Game and its Application in Decision Making Process of Hierarchical Organizations

Dejenee, Abiy (Addis Ababa University, 2007-08)

The solution of an n-level linear problem, when the levels make decisions se- quentially and independently, is not necessarily pareto-optimal, i.e.there exist feasible points which o®er increased payo®s to some levels ...

Linear Three-Level Programming Problem With the Application to Hierarchical Organizations

Lakie, Esubalew (Addis Ababa University, 2007-08)

In many decision processes there is an hierarchy of decision-makers and deci- sions are taken at di®erent levels in this hierarchy. The decentralized planning problem has long been recognized as an important decision-making ...

Nonlinear Transportation Problems

Terefe, Kidist (Addis Ababa University, 2007-08)

Some times there may be many di®erent ways to model a particular problem, choosing the best one minimizes the complexity of the problem and time to solve. Since, as we have said earlier, any programming problem with ...

Assessing the Implementation of Group InteractionIn Teaching and Learning of Mathematics in Cheha District Secondary Schools

Woldesenbet, Alemayehu (Addis Ababa University, 2007-09)

The main purpose of this study was to assess the implementation of five in one, group work and pair work cooperative learning in Cheha District general secondary schools. To conduct the study, survey design was employed. ...

Reduction of Sturm-Liouville Boundary Value Problem in to Integral Equation

Tesfamariam, Gerensea (Addis Ababa University, 2010-03)

In this paper we present a method of fnding eigenvalue and eigenfunction for linear second order elliptic dierential equation using the Fourier method. Then we present more specically for one dimension space called ...

Generalized Solution of Inhomogeneous Differential Equations

Tesfaye, Yohannes (Addis Ababa University, 2010-06)

We study the method to find a generalized solution to the linear inhomogeneous differential equations of different orders. Here first, second and fourth order linear inhomogenous differential equations are considered. We ...

Solutions to Dirichlet Problem and Neumann Problem

Alemayehu, Mulugeta (Addis Ababa University, 2011-01)

The complete set of this project focuses on solvability of the Dirichlet problem of the type _ Δ_ = u=f __ Ω _ = u _Ω and the Neumann problem of the type _ Δ_ = u __ Ω __ __ = ℎ __ _Ω . The explicit solutions ...

Solution of some Retarded Functional Differential Equation by Schauder’s Fixed point Theorem

Birabasa, Tariku (Addis Ababa University, 2011-01)

So far, many things were said about differential equations without time delay, the so called ordinary differential equations or partial differential equations, and their solutions. The fixed point theorems have been used ...

Ideals and Topological Properties of Semirings

Awgchew, Tesfaye (Addis Ababa University, 2011-01)

In this work our definition of Semiring is given without zero 0 and unity 1. The focus of the study is to give appropriate evaluation on Semirings which have their own related properties with Distributive lattices. We prove ...

Ordered trees, Skew diagrams and q-Catalan numbers

Berhanu, Thomas (Addis Ababa University, 2011-01)

This project is concerned with the enumeration of a combinatorial object, ordered tree, with respect to different parameters such as, number of edges, vertices, and path lengths. A known combinatorial argument is used ...

The Motzkin Numbers and their Combinatorial Interpretations

Ararsa, Shibru (Addis Ababa University, 2011-01)

This project paper is divided into four sections. we discuss the origin of Motzkin numbers using the division of finite number of points on a circle by non-intersecting chords. The idea of division of finite number of ...

Derivative Free Optimization

Abraha, Teklebirhan (Addis Ababa University, 2011-01)

We will present derivative free algorithms which optimize non-linear unconstrained optimization problems of the following kind: minxEnRmff (ff:R nn→R The algorithms developed for this type of problems are categorized ...

Ranked k-shorttestt patths iin nettwork

Brhane, Tsegay (Addis Ababa University, 2011-01)

The complete set of this paper focuses on k-shortest path problem and algorithms which solve k-shortest path in a graph G where V is set of n nodes and E is set of m arcs. and I have discussed how to compute the first, ...

Representation of Positive Linear Functional

Jifara, Worku (Addis Ababa University, 2011-01)

In analysis, if we consider thespace, the Riesz representation theorem states that, if is a bounded linear functional on spaces, with 1≤<∞ and μ be a -finite measure then there is unique element where 1=1 , such that ...

Boundary Value Problems for Laplace’s and Poisson’s Equations in Space

Amare, Zeleke (Addis Ababa University, 2011-01)

A differential equation is the most important part of mathematics for understanding many of the basic laws of physical sciences as well as other sciences. Some of the laws are formulated interms of mathematical equations ...

Proving Some Geometric the O rems Usingrorb ner base

Weldegiorgis, Aregawi (Addis Ababa University, 2011-01)

Algebraic Geometry can be used to prove geometric theorems in Euclidean Plane Geometry. This can be done when the geometric theorem has the property that the hypothesis and the conclusion of the theorem can be translated ...

Solutions of Elliptic Differentiial Operator

Kalayu, Berhe (Addis Ababa University, 2011-01)

This paper is devoted to integral representation for solutions of elliptic differential operators. Given Ω an open bounded domain in Rn≥2, with a smooth boundary Ω, and an elliptic differential operator,Uis a function ...

Browsing Mathematics by Issue Date

Browsing Mathematics by Issue Date

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