Syphilis, a major sexually transmitted disease, continues to pose major public health burden in both underdeveloped and developed nations of the world. This study presents a new 2‐group sex‐structured model for assessing ...
The realification of the (2n + 1)-dimensional complex Heisenberg Lie algebra is a (4n + 2) -dimensional real nilpotent Lie algebra with a 2-dimensional commutator ideal coinciding with the centre, and admitting the compact ...
Flint, Emlyn James; Mare, Eben(Actuarial Society of South Africa, 2017)
In this research we describe how forward-looking information on the statistical properties of an asset
can be extracted directly from options market data and demonstrate how this can be practically applied
to portfolio ...
Dragomir, Sever S.; Kikianty, Eder(Hindawi Publishing Corporation, 2017-12)
A copula is a function which joins (or ‘couples’) a bivariate distribution function to its
marginal (one-dimensional) distribution functions. In this paper, we obtain
Chebyshev type inequalities by utilising copulas.
Mathematical models for chemically reacting systems have high degrees of freedom (very large) and are computationally expensive to analyse. In this discussion, we present and analyse a model reduction method that is based ...
Berge, Tsanou; Bowong, Samuel; Lubuma, Jean M.-S.; Manyombe, M.L.M. (Martin Luther Mann)(American Institute of Mathematical Sciences, 2018-02)
We propose a new deterministic mathematical model for the transmission dynamics of Ebola Virus Disease (EVD) in a complex Ebola virus life ecology. Our model captures as much as possible the features and patterns of the ...
We investigate the isometry groups of the left-invariant Rieman-
nian and sub-Riemannian structures on simply connected three-dimensional
Lie groups. More speci cally, we determine the isometry group for each nor-
malized ...
Diseases, in particular, vector-borne diseases are very important issues in crop protection. However, despite their impact on food safety, very few mathematical models have been developed in order to improve control ...
Basson, Madelein; Stapelberg, Belinda; Janse van Rensburg, N.F.J. (Nicolaas)(Taylor and Francis, 2017-04)
In this article, we derive error estimates for the semi-discrete and fully discrete Galerkin approximations of a general linear second-order hyperbolic partial differential equation with general damping (which includes ...
The aim of this paper is to introduce a class of generalized Suzuki type (α∗,ψφ)-contractive multivalued operators and to prove the existence of fixed point and common fixed point of such operators in the setup of b-metric ...
Leyew, Bahru Tsegaye; Mujahid, Abbas(University Politehnica of Bucharest, 2017)
In this paper, we introduce the concept of a generalized-Suzuki-Geraghty type
contraction mapping and obtain fixed point results in the framework of an f-orbitally
complete b-metric space. The results proved herein ...
Abbas, Mujahid; Rakocevic, Vladimir; Leyew, Bahru Tsegaye(University of Nis, Serbia, Faculty of Sciences and Mathematics, 2017)
In this paper, the concept of (α − ψ)-generalized rational contraction multivalued operator is introduced and then the existence of common fixed points of such mapping in complete dislocated quasi b-metric spaces is obtained. ...
Nazam, Muhammad; Arshad, Muhammad; Abbas, Mujahid(Universidad Politécnica de Valencia, 2017)
Following the approach of F-contraction introduced byWardowski [13],
in this paper, we introduce improved F-contraction of rational type in
the framework of partial metric spaces and used it to obtain a common
fixed ...
Wiggins, Harry; Harding, Ansie; Engelbrecht, Johann C. (Johannes Cornelis), 1946-(Taylor and Francis, 2017-10)
This paper presents an enrichment case study to showcase a possible avenue for attending to the needs of academically strong mathematics students. We report on a group of university students who were presented with the ...
Spectral methods have been actively developed in the last decades. The
main advantage of these methods is to yield exponential order of accuracy
when the function is smooth. However, for discontinuous functions,
their ...
Cerone, Pietro; Dragomir, Sever S.; Kikianty, Eder(Element d.o.o., 2017)
We present some inequalities of Ostrowski and trapezoid type with complex exponential
weight, for complex-valued absolutely continuous functions. These inequalities are related to
Pompeiu’s mean value theorem. Special ...
It is shown by using a rather elementary argument
in Mathematical Logic that if indeed, quantum theory
does violate the famous Bell Inequalities, then quantum
theory must inevitably also violate all valid mathematical ...