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Browsing Research Articles (Mathematics and Applied Mathematics) by Type "Article"
Now showing items 1-20 of 250
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(Elsevier, 2023-11)Asset Liability Management (ALM) is an essential risk management technique in Quantitative Finance and Actuarial Science. It aims to maximise a risk-taker’s ability to fulfil future liabilities. ALM is especially critical in ...
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(Scientific Research Publishing, 2014-01)The aim of this paper is to show how options with transaction costs under fractional, mixed Brownian-fractional, and subdiffusive fractional Black-Scholes models can be efficiently computed by using the barycentric Jacobi ...
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(SpringerOpen, 2014)The existence of fixed points of single-valued mappings in modular function spaces has been studied by many authors. The approximation of fixed points in such spaces via convergence of an iterative process for single-valued ...
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(Association of Mathematics Education of South Africa, 2010-12)The 2009 intake of university students were the first to have received complete school education within the recently implemented Outcomes‐Based Education (OBE) system. A feature of the matriculation examination results ...
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(Department of Economics, University of Pretoria, 2014)We consider so-called volatility targeting strategies in the South African equity market. These strategies are aimed at keeping the volatility of a portfolio consisting of a risky asset, typically an equity index, and ...
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(American Institute of Physics, 2018-07)In this work, we compare the performance of some finite difference methods in order to solve an advection-diffusion equation which models atmospheric flows. This flow problem was solved by Clancy [3] using Forward-Time ...
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Banking regulations : an examination of the failure of African Bank using Merton’s structural model (Academy of Science of South Africa, 2017-07)The business of banking involves the taking of deposits and the making of loans. Banking balance sheets are typically highly leveraged, with equity capital generally dwarfed by debt capital. Banks are regulated entities; ...
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(University of New Mexico, 2020)The aim of this paper is to initiat formal study of hypersoft sets. We first, present basic operations like union, intersection and difference of hypersoft sets; basic ingrediants for topological structures on the ...
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(Department of Mathematics, 2020)Berinde introduced almost contraction mappings and proved Banach contraction principle for such mappings. The aim of this paper is to introduce the notion of multivalued almost Θ- contraction mappings and to prove some ...
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(Biomath Forum, 2019-01-23)Crop host-pathogen interaction have been a main issue for decades, in particular for food security. In this paper, we focus on the modeling and long term behavior of soil-borne pathogens. We first develop a new ...
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(Biomath Forum, 2020-05)The paper draws attention to the asymptomatic and mildly symptomatic cases of COVID-19, which, according to some reports, may constitute a large fraction of the infected individuals. These cases are often unreported and ...
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(University of Waterloo, 2020-11)Given a sequence of distinct positive integers w0,w1,w2, . . . and any pos- itive integer n, we define the discriminator function Dw(n) to be the smallest positive integer m such that w0, . . . ,wn−1 are pairwise incongruent ...
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(Association of Mathematics Education of South Africa, 2011-09-13)This article describes the experiences and mathematics performance of Grade 12 learners selected to participate in a mathematics intervention project using digital video disk (DVD) technology within a blended learning ...
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(Cambridge University Press, 2014-04)The zeros of certain different sequences of orthogonal polynomials interlace in a well-defined way. The study of this phenomenon and the conditions under which it holds lead to a set of points that can be applied as bounds ...
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(South Ural State University, 2018)This is a brief exposition of dynamic systems approaches that form the basis for linear implicit evolution equations with some indication of interesting applications. Examples in in nite-dimensional dissipative systems ...
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(Ovidius University, Constanta, 2019)The aim of this paper is to introduce Ciric-Suzuki type quasi-contractive multivalued operators and to obtain the existence of fixed points of such mappings in the framework of b-metric spaces. Some examples are presented ...
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(Water Research Commission, 2015)Water pollution events may arise rapidly, requiring a methodology that is easy to implement, fast to deploy, and sufficiently sensitive to detect the trace presence of hazardous contaminants. A cheap and easy to use ...
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(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.
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Coincidence best proximity point of F-g-weak contractive mappings in partially ordered metric spaces (International Scientific Research Publications, 2016)The aim of this paper is to present coincidence best proximity point results of Fg-weak contractive mappings in partially ordered metric space. Some examples are presented to prove the validity of our results.
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(Reza Saadati, 2015)Recently Abbas [M. Abbas, Coincidence points of multivalued f−almost nonexpansive mappings, Fixed Point Theory, 13 (1) (2012), 3–10] introduced the concept of f−almost contraction which generalizes the class of multivalued ...
Now showing items 1-20 of 250