Archive:: International Journal of Discrete Mathematics:: Science Publishing Group

Volume 6, Issue 1, June 2021

Dynamics of COVID-19 in Nigeria; Prevention of Likely Third Wave of the Deadly Pandemics

Adebisi Sunday Adesina

Issue: Volume 6, Issue 1, June 2021

Pages: 1-4

Received: 14 April 2021

Accepted: 3 May 2021

Published: 14 May 2021

DOI: 10.11648/j.dmath.20210601.11

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Abstract: The rate through which the newly discovered coronavirus otherwise referred to as covid-19 is spreading seems to be very alarming and therefore calls for immediate and proper attention in order to forestall ugly occurrences and experience of deteriorate in the health of the majority of people in the country. Of recent, reports are showing that the i... Show More

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Peaceman Rachford Alternating Direct Implicitly Method for Linear Advection-Diffusion Equation and Its Application

Kedir Aliyi Koroche

Issue: Volume 6, Issue 1, June 2021

Pages: 5-14

Received: 3 April 2021

Accepted: 6 May 2021

Published: 14 May 2021

DOI: 10.11648/j.dmath.20210601.12

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Abstract: In this paper, Peaceman-Rachford alternating direct implicitly methods presented and applied for solve linear advection-diffusion equation. First, the domain was discretized using the uniform mesh of step length and time step. Secondly, by applying the Taylor series methods, we discretize partial derivative of governing equation and we obtain the c... Show More

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A ‘Machine’ for Creating Mathematical Concepts in an Abstract Way, Bidecimal Numbers

Rik Verhulst

Issue: Volume 6, Issue 1, June 2021

Pages: 15-22

Received: 7 April 2021

Accepted: 18 May 2021

Published: 26 May 2021

DOI: 10.11648/j.dmath.20210601.13

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Abstract: In mathematics, the creation and definition of new concepts is the first step in opening up a new field of research. Traditionally this step originated from intuition by a process of observation, analysis and abstraction. This article will show a general method by which most of the common notions of number theory, geometry, topology, etc., can be i... Show More

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