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 ...
Manicom, Gray Thomas(University of Pretoria, 2017)
The main result of this thesis is an existence result for parabolic semi-linear
problems. This is done by reformulating the semi-linear problem as an abstract
Cauchy problem
ut(t) = Au(t) + f(t; u(t)), t > 0
u(0) = u0 ...
Appadu, A. Rao; Djoko, J.K. (Jules Kamdem); Gidey, H.H.(Springer, 2017-12)
In this work, we analyze four finite volume methods for the nonlinear convective Cahn–Hilliard equation with specified initial condition and periodic boundary conditions. The methods used are: implicit one-level, explicit ...
We establish the existence of weak martingale solutions to a class of second order
parabolic stochastic partial differential equations. The equations are driven by multiplicative
jump type noise, with a non-Lipschitz ...
Bezhanishvili, Guram; Moraschini, Tommaso; Raftery, James G.(Elsevier, 2017-12)
It is proved that epimorphisms are surjective in a range of varieties of residuated structures, including all varieties of Heyting or Brouwerian algebras of finite depth, and all varieties consisting of Gödel algebras, ...
Mahasa, Khaphetsi Joseph; Eladdadi, Amina; De Pillis, Lisette; Ouifki, Rachid(Public Library of Science, 2017-09-21)
In the present paper, we address by means of mathematical modeling the following main
question: How can oncolytic virus infection of some normal cells in the vicinity of tumor cells
enhance oncolytic virotherapy? We ...
Campercholi, M.A.; Raftery, James G.(Springer, 2017-11)
Quasivarietal analogues of uniform congruence schemes are discussed, and their relationship with the equational definability of principal relative congruences (EDPRC) is established, along with their significance for ...
Alofi, Abdulaziz Saleem Moslem; Al-Mazrooei, Abdullah Eqal; Leyew, Bahru Tsegaye; Abbas, Mujahid(International Scientific Research Publications (ISRP), 2017)
In this paper, we introduce the concept of -dominated multivalued mappings and establish the existence of common fixed
points of such mappings on a closed ball contained in left/right K-sequentially complete dislocated ...
Evolution equations containing fractional derivatives
can provide suitable mathematical models for
describing important physical phenomena. In this paper,
we propose an accurate method for numerical solutions
of ...
Abbas, Mujahid; De la Sen, Manuel; Nazir, Talat(Hindawi Publishing, 2015)
The aim of this paper is to present fixed point result of mappings satisfying a generalized rational contractive condition in the setup
of multiplicative metric spaces. As an application, we obtain a common fixed point ...