We formulate an implicit hybrid block method for the numerical solution of stiff first-order Ordinary Differential Equations (ODEs) using the Legendre polynomial as our basis function via interpolation and collocation techniques. The paper further investigates the basic propertie...
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Research Article10.9734/BJMCS/2015/16252
Two fairly useful notions to support some commutativity conditions for non commutative rings are symmetry and reversibility. Our aim in this note is to study *- symmetric rings, where * is an involution on the ring. A ring R with involution * is called *- symmetric if for any ele...
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Research Article10.9734/BJMCS/2015/17267
We present and prove a set of necessary and sufficient conditions that the inequality f4(x, y, z) ≥ 0 holds for all nonnegative real variables x, y, z, where f4(x, y, z) is a cyclic homogeneous polynomial of degree four which satisfies f4(1, 1, 1) = 0.
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Research Article10.9734/BJMCS/2015/16723
The Klein 4-group, denoted by V4 is an abelian group of order 4. It has elements V= {0, a, b, c}, with a + a = b + b = c + c = 0 and a + b = c, b + c = a, c + a = b. A graph G= (V (G), E(G)), with vertex set V (G) and edge set E(G), is said to be V4 magic if there exists a labeli...
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Research Article10.9734/BJMCS/2015/16439
We give a non-metric version of the Besicovitch Covering Lemma and an extension of the Lebesgue-Differentiation Theorem into the setting of the integration theory of vector valued functions.
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Research Article10.9734/BJMCS/2015/16752
The research is concerned with the development of a mathematical model for estimating the body weight of human beings in relation to some of their anthropometric parameters (height and waist sizes). The model was optimized to know whether it is possible for humans to have a maxim...
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Research Article10.9734/BJMCS/2015/10987
In this paper we study the action of A on f ( the spline of order n with nodes az+) and on its wavelet coefficients, where A = is a double infinite matrix operator in a Hilbert space l 2(z+). Also, we make an attempt to find frame conditions for A-transform of f.
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Research Article10.9734/BJMCS/2015/4843
Let R be a ring and I an ideal of R. We define and study I-pure submodules , I-FP-injective modules, I-flat modules , I-coherent rings and I-semihereditary rings. Using the concepts of I-FP-injectivity and I-flatness of modules, we also present some characterizations of I-coheren...
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Research Article10.9734/BJMCS/2015/16451
Some new sufficient conditions are established for the oscillation of all solutions of the second order neutral difference equation of the form where The results obtained here are new and further improve and complement some known results in the literature. Examples are provided t...
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Research Article10.9734/BJMCS/2015/16079
A modified Adomian decomposition method is developed for the numerical solution of Eleventhorder initial and boundary value problems. The approximate solutions of the problems are calculated in the form of a rapid convergent series and on one and both grid points. The calculated...
Open access
Research Article10.9734/BJMCS/2015/16155