Browsing Department of Mathematics by Title

Now showing items 92-111 of 570

    • Decomposition of Modules and Tensor Products over Principal Subalgebras of Truncated Polynomial Rings 

      Harris, Kevin Steine Jr.; 0000-0003-0053-1824 (2022-08-15)
      The topic of my dissertation is to investigate the behavior of modules and tensor products over a truncated polynomial ring with prime characteristic. This investigation utilizes principal subalgebras of the truncated ...

    • DECONVOLVING KERNEL REGRESSION FUNCTION ESTIMATION BASED ON RIGHT CENSORED DATA 

      Ozkan, Erol; 0000-0002-0924-252X (2021-08-16)
      In this study, we propose a new regression function estimator when the observa- tion is contaminated in the convolution model with error in independent variable. We want to examine the e ect of the error variables when ...

    • DECOUPLING-BASED APPROACH TO CENTRALITY DETECTION IN HETEROGENEOUS MULTILAYER NETWORKS 

      Mukunda, Kiran; 0000-0001-7801-5227 (2021-08-13)
      Graph analysis is one of the techniques widely used for data analysis. It is used extensively on single graphs. Its ability to capture entities and relationships makes it an attractive data model. Search on graphs, such ...

    • Differential Equation Models Of Foreign Body Fibrotic Reactions For Assessing Roles Of Macrophage Phenotypes And Mesenchymal Stem Cells 

      Owens, Larrissa
      Implant failure due to fibrotic encapsulation is an ongoing challenge in the bio-medical field. We develop two mathematical models based on partial differential equations in two spatial dimensions, and use them to gain ...

    • Differential Equations on Closed Subsets of a Banach Space 

      Lakshmikantham, V. (University of Texas at ArlingtonDepartment of Mathematics, 1974-07)
      **Please note that the full text is embargoed** ABSTRACT: The problem of existence of solutions to the initial value problem [see pdf for notations], where [see pdf for notations], F is a locally closed subset of a Banach ...

    • Differential Inequalities and Flow-Invariance via Linear Functionals 

      Lakshmikantham, V.; Eisenfeld, Jerome (University of Texas at ArlingtonDepartment of Mathematics, 1977-05)
      **Please note that the full text is embargoed** ABSTRACT: This paper deals with flow-invariance properties with respect to [see pdf for notation] and resulting comparison inequalities. Both the order relation He and the ...

    • A Direct Computational Method for Estimating the Parameters of a Nonlinear Model 

      Eisenfeld, Jerome; Cheng, Stephen W. (University of Texas at ArlingtonDepartment of Mathematics, 1978)
      **Please note that the full text is embargoed** ABSTRACT: We consider the system identification problem which deals with determining information about the unknown constant matrices A, B, and C or the linear dynamical system: ...

    • Direct Numerical Simulation For Flow Transition Over A Flat Plate 

      Deng, Shutian (Mathematics, 2007-08-23)
      In this paper, direct numerical simulation (DNS) of flow transition over a flat plate at a free stream Mach number of 0.5 and a Reynolds number of 1000 based on the free stream velocity and inflow displacement thickness ...

    • A Discrete Model for the Recovery of Oil from a Reservoir 

      Vargas-Jarillo, Cristobal (University of Texas at ArlingtonDepartment of Mathematics, 1984)
      **Please note that the full text is embargoed** ABSTRACT: In this work we simulate oil recovery by means of a molecular type approach. This means that we consider the solid and liquid materials to be composed of a finite ...

    • Discrete Modeling of Minimal Surfaces 

      Coppin, C.; Greenspan, Donald (University of Texas at ArlingtonDepartment of Mathematics, 1982-05)
      **Please note that the full text is embargoed** ABSTRACT: A new computer approach to the modeling of minimal surfaces is described and implemented. Quasi-molecular particles and forces are used to simulate actual molecular ...

    • Discrete Spring Solitons 

      Greenspan, Donald (University of Texas at ArlingtonDepartment of Mathematics, 2001-05)
      **Please note that the full text is embargoed** ABSTRACT: A soliton is a local, traveling wave pulse. It is significant in a variety of unrelated areas, like studies of water waves, acoustic waves, electron transfer, gravity ...

    • Discrete Time Risk Models With Random Premiums 

      Smith, Llewellyn Hillyer; 0000-0003-1845-1144 (2018-04-27)
      Over the past century insurance companies relied to a large extent on the continuous time Mathematical Risk Model proposed by Lundberg, known for its ability to estimate the probability of ruin(capital reserve falling below ...

    • Discriminatory Von Neumann-Morgenstern Solutions 

      Heijmans, J. G. C. (University of Texas at ArlingtonDepartment of Mathematics, 1990-05)
      **Please note that the full text is embargoed** ABSTRACT: The von Neumann-Morgenstern solution (vN-M solution) or stable set is arguably the most dynamic and flexible solution concept for cooperative games with ...

    • DNS Study For The Origin Of The Chaos In Late Boundary Layer Transition Over A Flat Plate 

      Thapa, Manoj Kumar (Mathematics, 2014-03-12)
      This dissertation is devoted to the investigation of the origin and mechanism of chaos ( asymmetric or disorganized flow) in late boundary layer transition over a flat plate without pressure gradient. This kind of flow not ...

    • Dynamical Generation of Electron Motions in Ground State H2+, in Ground State H2, and in the First Excited State of H2 

      Greenspan, Donald (University of Texas at ArlingtonDepartment of Mathematics, 1996)
      **Please note that the full text is embargoed** ABSTRACT: Using the recent formulation of Gell-Mann and Hartle for approximating quantum dynamical phenomena by means of classical equations, we simulate electron motions in ...

    • Dynamical Role of Pivotal Brain Regions in Parkinson Symptomatology Uncovered with Deep Learning 

      Nguyen, Alex A.; Maia, Pedro D.; Gao, Xiao; Damasceno, Pablo F.; Raj, Ashish (MDPI, 2020-01-30)
      **Please note that the full text is embargoed** ABSTRACT: The release of a broad, longitudinal anatomical dataset by the Parkinson’s Progression Markers Initiative promoted a surge of machine-learning studies aimed at ...

    • Dynamical Simulation of the Simplest Hydrides 

      Greenspan, Donald (University of Texas at ArlingtonDepartment of Mathematics, 1996)
      **Please note that the full text is embargoed** ABSTRACT: In agreement with recent results of Gell-Mann and Hartle, we approximate electron motions in ground state Li7H1 and Li7H2 using an energy conserving numerical method ...

    • Dynamics of Large Eddies in Turbulent Channel Flows 

      Payne, F. R.; Hong, S. K. (University of Texas at ArlingtonDepartment of Mathematics, 1987-06)
      **Please note that the full text is embargoed** ABSTRACT: A turbulence model that describes dynamics of large, characteristic eddies in inhomogeneous flows is proposed; two closure parameters are initially undetermined. ...

    • The effect of the HIV/AIDS epidemic on Africa's truck drivers 

      Kribs, Christopher; Lee, Melanie; Roman, Christine; Wiley, Shari; Hernandez-Suarez, Carlos M. (American Institute of Mathematical SciencesMathematics Department, University of Texas at Arlington, 2005-10)
      The AIDS epidemic is having a growing impact on the transport sector of the economy of sub-Saharan Africa, where long-distance truck drivers are at an increased risk of infection due to their frequent contacts with ...

    • Effects Of Discrete Time Delays And Parameters Variation On Dynamical Systems 

      Diakite, Ibrahim Oumar (Mathematics, 2013-10-23)
      To understand the effects of discrete time delays and of parameters variation on certain biological system models, we first consider a Delay Differential Equation model of human immunodeficiency virus (HIV). We investigate ...