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All published articles 465

The Importance of the Golden Number for Mathematics and Computer Science: Exploration of the Bergman’s System and the Stakhov's Ternary Mirror-symmetrical System (Numeral Systems with Irrational Bases)

Alexey Stakhov · Journal of Advances in Mathematics and Computer Science · 2016

The main goal of the article is to explore two unusual numeral systems, which alter radically our ideas on the positional numeral systems. We are talking on the numeral systems with irrational bases. The first of them is the binary (0,1) numeral system with the irrational base   ...

Open access Research Article 10.9734/BJMCS/2016/28262

Some Applications of One and Two- Dimensional Fourier Series and Transforms

Shpetim Rexhepi & Fatmir Hoxha · Journal of Advances in Mathematics and Computer Science · 2016

The paper provides a solid foundation in the fundamentals of one and two-dimensional Fourier series and transforms, examines the representation of periodic non-sinusoidal signals which can include current, voltage, voice, image etc, as sum of infinite trigonometrically series in...

Open access Research Article 10.9734/BJMCS/2016/28253

Development of an Improved Cognitive Complexity Metrics for Object- Oriented Codes

O. Isola Esther, O. Olabiyisi Stephen, O. Omidiora Elijah, A. Ganiyu Rafiu, T. Ogunbiyi Dimple & Y. Adebayo Olajide · Journal of Advances in Mathematics and Computer Science · 2016

Cognitive informatics helps in comprehending the software characteristics and its complexity measures can be used to predict critical information about testability of software system. In this paper, a cognitive complexity metric for C++ programming language is formulated. Since C...

Open access Research Article 10.9734/BJMCS/2016/28515

Survey of Methods in Sentiment and Emotional Analysis

K. Kesav Raj, G. Sujitha, R. Karthikaeyan & C. Kishore Kumar · Journal of Advances in Mathematics and Computer Science · 2016

People tend to convey emotions and show the sentiment either consciously or unconsciously while they speak or write. Many are under the common delusion that both sentiment and emotion are indistinguishable. Sentiment is the mental attitude originating from the feelings whereas em...

Open access Research Article 10.9734/BJMCS/2016/25428

Common Fixed Points of Kannan and Chatterjea Types of Mappings in a Complete Metric Space

Risto Malčeski, Aleksa Malčeski, Katerina Anevska & Samoil Malčeski · Journal of Advances in Mathematics and Computer Science · 2016

This paper contains several generalizations of the theorems for common fixed point of R. Kannan, S. K. Chatterjea and P. V. Koparde & B. B. Waghmode types of mappings. These generalizations are done by using a sequentially convergent mappings. Trough several examples, we have...

Open access Research Article 10.9734/BJMCS/2016/27906

Dynamics of Water Hyacinth in a Fishery System with Delay Effect

B. S. N. Murthy & M. A. S. Srinivas · Journal of Advances in Mathematics and Computer Science · 2016

This paper analyses the dynamics of a fishery system in an aquatic environment that consists of two zones: water hyacinth zone and free zone. Fish harvesting is allowed in both the zones and fish migration is allowed from water hyacinth zone to free zone and not back. This paper...

Open access Research Article 10.9734/BJMCS/2016/27141

On the Non-Existence of Difference Sets with Perfect Square Order

Adegoke S. Osifodunrin · Journal of Advances in Mathematics and Computer Science · 2016

The existence of Paley-Hadamard (4t − 1, 2t − 1, t − 1) difference sets provides a platform for solving the equation δ¯δ = n in the cyclotomic ring Z[ζ4t−1], where ζ4t−1 is root of unity, n > 1 and t > 1 are integers. We look at cases where ⟨n⟩ = ⟨δ⟩⟨¯δ⟩ in Z[ζ4t−1] but δ¯δ...

Open access Research Article 10.9734/BJMCS/2016/9173

Symbolic Dynamics Generated by a Hybrid Chaotic Systems

Carlos Correia Ramos, Ana Isabel Santos & Sandra Vinagre · Journal of Advances in Mathematics and Computer Science · 2016

We consider piecewise defined differential dynamical systems which can be analysed through symbolic dynamics and transition matrices. We have a continuous regime, where the time flow is characterized by an ordinary differential equation (ODE) which has explicit solutions, and the...

Open access Research Article 10.9734/BJMCS/2016/27863

Numerical Solution of First Order Fuzzy Differential Equations by Simpson’s Rule

S. Sindu Devi & K. Ganesan · Journal of Advances in Mathematics and Computer Science · 2016

The concept of fuzzy versions of Simpson’s rule and Runge-Kutta method of order four are introduced. In this paper, the solution of fuzzy ordinary differential equation of the first order by Simpson’s rule and Runge-Kutta method of order four is presented without converting them...

Open access Research Article 10.9734/BJMCS/2016/26060

An Example of the Application of Provability Logic to Unsolved Problems in Number Theory: The Cullen Numbers and Conway’s Supposition

Alexander Bolotin · Journal of Advances in Mathematics and Computer Science · 2016

This short paper offers an example of possibly fruitful interactions between modal logic and number theory. In the paper, Conway's remark that p and p.2p + 1  can both be prime numbers is formulated as a formula of modal logic and then analyzed for its decidability.

Open access Research Article 10.9734/BJMCS/2016/27581

Permeable Rings and Their Extensions

M. A. Zalukh & S. K. Nauman · Journal of Advances in Mathematics and Computer Science · 2016

Let us call a ring R to be right permeable if for any α ∈ R; Rα  = 0, then αR = 0. Left permeable and permeable rings are defined analogously. These rings are generalized reversible rings with a privileging role that permeability inherited in its several extensions where reversib...

Open access Research Article 10.9734/BJMCS/2016/27803

The nth Power Transformation of the Error Component of the Multiplicative Time Series Model

A. O. Dike, E. L. Otuonye & D. C. Chikezie · Journal of Advances in Mathematics and Computer Science · 2016

In this paper the author(s) present derivations for the mean and variance of the nth power transformation of the error component of the multiplicative time series model. as a general rule to any power transformation. Some of the published transformations like the square root and...

Open access Research Article 10.9734/BJMCS/2016/27246