Browsing Research Articles (Mathematics and Applied Mathematics) by Title

Browsing Research Articles (Mathematics and Applied Mathematics) by Title

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  • Toward achieving a vaccine-derived herd immunity threshold for COVID-19 in the U.S. 
    Gumel, Abba B.; Iboi, Enahoro A.; Ngonghala, Calistus N.; Ngwa, Gideon A. (Frontiers Media, 2021-07-23)
    A novel coronavirus emerged in December of 2019 (COVID-19), causing a pandemic that inflicted unprecedented public health and economic burden in all nooks and corners of the world. Although the control of COVID-19 largely ...
  • Traveling wave solution of the Kuramoto-Sivashinsky equation : a computational study 
    Aderogba, Adebayo Abiodun; Chapwanya, Michael; Djoko, J.K. (Jules Kamdem) (American Institute of Physics (AIP), 2012-01)
    This work considers the numerical solution of the Kuramoto-Sivashinsky equation using the fractional time splitting method. We will investigate the numerical behavior of two categories of the traveling wave solutions ...
  • Tricorns and multicorns in Noor orbit with s-convexity 
    Kwun, Young Chel; Shahid, Abdul Aziz; Nazeer, Waqas; Butt, Saad Ihsan; Abbas, Mujahid; Min Kang, And Shin (Institute of Electrical and Electronics Engineers, 2019-07)
    Please read abstract in the article.
  • Tripled coincidence and common fixed point results for two pairs of hybrid mappings 
    Kutbi, Marwan Amin; Ahmad, Jamshaid; Abbas, Mujahid; Arshad, Muhammad (Hindawi Publishing Corporation, 2014-01-30)
    The tripled fixed point is a generalization of the well-known concept of “coupled fixed point.” In this paper, tripled coincidence and common fixed point results for two hybrid pairs consisting of multivalued and single ...
  • Tripled fixed point results for T-contractions on abstract metric spaces 
    Rahimi, Hamidreza; Vetro, Calogero; Abbas, Mujahid; Rad, Ghasem Soleimani (Etamaths Publishing, 2014)
    In this paper we introduce the notion of T-contraction for tripled xed points in abstract metric spaces and obtain some tripled xed point theorems which extend and generalize well-known comparable results in the literature. ...
  • A two-strain avian–human influenza model with environmental transmission : stability analysis and optimal control strategies 
    Tadmon, Calvin; Feukouo Fossi, Arnaud; Tsanou, Berge (Elsevier, 2024-06)
    On the basis of the WHO legitimated fear that there will be an avian influenza virus strain capable of mutating once it reaches the human population and sustains human-to-human transmissions, we formulate an hypothetical ...
  • Unification of several distance functions and a common fixed point result 
    Abbas, Mujahid; Ali, Bashir; Suleiman, Yusuf I. (SpringerOpen, 2016-12)
    In this work, we initiate the notions of dislocated-Ab-quasi-metric and Ab-quasi-metric-like spaces. Then we establish the existence of a common fixed point of weakly compatible mappings satisfying a contractive condition ...
  • Unique factorization of compositive hereditary graph properties 
    Broere, Izak; Drgas-Burchardt, Ewa (Springer, 2012-02)
    Please read abstract in article.
  • Universal algebraic methods for non-classical logics 
    Raftery, James G. (Springer, 2022)
    This expository article is a compilation of universal algebraic prerequisites and tools for the analysis of non-classical logics, with particular (but not exclusive) reference to substructural logics.
  • Universal H-colourable graphs 
    Broere, Izak; Heidema, Johannes (Springer, 2013)
    Rado constructed a (simple) denumerable graph R with the positive integers as vertex set with the following edges: for given m and n with m < n, m is adjacent to n if n has a 1 in the mth position of its binary expansion. ...
  • Universal problem for Kähler differentials in A-modules : non-commutative and commutative cases 
    Abel, M.; Ntumba, Patrice P. (Springer, 2014-08)
    Let A be an associative and unital K-algebra sheaf, where K is a commutative ring sheaf, and ε an (A, A)-bimodule, that is, a sheaf of (A, A)-bimodules. We construct an (A, A)-bimodulc which is K-isomorphic with the K-module ...
  • Universality for and in induced-hereditary graph properties 
    Broere, Izak; Heidema, Johannes (2013)
    The well-known Rado graph R is universal in the set of all countable graphs I, since every countable graph is an induced subgraph of R. We study universality in I and, using R, show the existence of 20 pairwise non-isomorphic ...
  • Universality in graph properties allowing constrained growth 
    Broere, Izak; Heidema, Johannes (Elsevier, 2020)
    A graph property is a class of graphs which is closed under isomorphisms. Some properties are also closed under one or more specified constructions that extend any graph into a supergraph containing the original graph as ...
  • Value at risk in the South African equity market : a view from the tails 
    Milwidsky, C.; Mare, Eben (Juta, 2010-09)
    Traditional parametric Value at Risk (VaR) estimates assume normality in financial returns data. However, it is well known that this distribution, while convenient and simple to implement, underestimates the kurtosis ...
  • Vanishing elements and Sylow subgroups 
    Madanha, Sesuai Yasha (Taylor and Francis, 2022-07)
    Please read abstract in the article.
  • Variations and extensions of the Gaussian concentration inequality, Part I 
    Fresen, Daniel J. (Taylor and Francis, 2023)
    The classical Gaussian concentration inequality for Lipschitz functions is adapted to a setting where the classical assumptions (i.e. Lipschitz and Gaussian) are not met. The theory is more direct than much of the existing ...
  • Varieties of De Morgan monoids : covers of atoms 
    Moraschini, Tommaso; Raftery, James G.; Wannenburg, Johann Joubert (Cambridge University Press, 2020)
    The variety DMM of De Morgan monoids has just four minimal subvarieties. The join-irreducible covers of these atoms in the subvariety lattice of DMM are investigated. One of the two atoms consisting of idempotent algebras ...
  • Varieties of De Morgan monoids : minimality and irreducible algebras 
    Moraschini, Tommaso; Raftery, James G.; Wannenburg, Johann Joubert (Elsevier, 2019-07)
    Please read abstract in the article.
  • Vector semi-inner products 
    Rose, Kyle; Schwanke, Christopher Michael; Ward, Zachary (Mathematical Sciences Publishers, 2022-07)
    Please read abstract in the article.
  • Veralgemeende Sylvester-Gallai Stelling 
    Swanepoel, Konrad Johann; Pretorius, Lou M. (Lourens Martin) (Suid Afrikaanse Akademie vir Wetenskap & Kuns, 2007-03)
    Ons gee 'n algoritmiese bewys vir die kontrapositief van die volgende stelling wat onlangs deur die outeurs bewys is: Laat S 'n eindige versameling van punte in die vlak wees, met elke punt rooi, blou of met beide kleure ...