Let X be a graph on n vertices and let B = {P(x) : x ∈ V (X)} be a collection of n subgraphs of X, one for each vertex, B is an orthogonal double cover (ODC) of X if every edge of X occurs in exactly two members of B and any two members share an edge whenever the corresponding ve...
Open access
Research Article10.9734/BJMCS/2014/5999
In this paper, a Susceptible - Exposed - Infected - Recovered (SEIR) epidemiological model is formulated to determine the transmission of tuberculosis. The equilibrium points of the model are found and their stability is investigated. By analyzing the model, a threshold parameter...
Open access
Research Article10.9734/BJMCS/2014/4681
In recent years, uncertain textual data has become ubiquitous because of the latest technology used for data collection. As the existing technology can only collect data in an imprecise way. Furthermore, various technologies such as privacy-preserving data mining create data whic...
Open access
Research Article10.9734/BJMCS/2014/6023
In the present article generalization of Weierstrass’s preparation theorem and the division theorem for germs of holomorphic functions at a point of n -dimensional complex space are considered. The author formulates the global theorem about division in terms of existence and cont...
Open access
Research Article10.9734/BJMCS/2014/6181
The Hypoexponential distribution is the distribution of the sum of m≥2 independent Exponential random variables. This distribution is used in modeling multiple exponential stages in series. This distribution can be used in many domains of application. In this paper we find a modi...
Open access
Research Article10.9734/BJMCS/2014/6317
In a previous paper, we have shown how to obtain sequences of numbers proved random : these sequences can be regarded as a sample of IID sequences of random variables. By using Fibonacci congruences, we transformed sequences of noises yn such that the conditional probabilities ha...
Open access
Research Article10.9734/BJMCS/2014/5252
In this paper we define the k-restrictly norm constant rk(A) of a matrix A to be used in compressed sensing and give better error estimations on recovering compressive signals with noise using the matrix A~ _ A rk(A) . Furthermore, we define the notion of k-restricted invertibili...
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Research Article10.9734/BJMCS/2014/6171
Wave breaking is a phenomenon well-studied in the context of shallow water waves. This paper attempts to connect wave breaking to the global existence of solutions for the periodic peakon b-family of equations. New results on existence of global strong solutions to periodic b-fam...
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Research Article10.9734/BJMCS/2014/5495
A nonlinear evolution equation in the AKNS hierarchy is presented. The symmetries for this equation are given. The exact traveling wave solutions are obtained by using the tanh-expand and sine-cosine methods.
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Research Article10.9734/BJMCS/2014/6465
Fortune’s Conjecture is extended from a relatively short interval after each primorial to an infinite numbers of similar intervals on both sides of primorials, where n is a positive integer. In addition, it is shown that for every prime in the interval ,there is a number in th...
Open access
Research Article10.9734/BJMCS/2014/5701