Results 41 to 50 of about 2,080,676 (172)

Approximation of high-dimensional parametric PDEs [PDF]

open access: yes, 2015
Parametrized families of PDEs arise in various contexts such as inverse problems, control and optimization, risk assessment, and uncertainty quantification. In most of these applications, the number of parameters is large or perhaps even infinite.
Cohen, Albert, Devore, Ronald
core   +4 more sources

Application of Newton iteration to the numerical solution of variable-density groundwater flow in saturated-unsaturated coastal zones

open access: yesFrontiers in Marine Science, 2023
When addressing the question of variable saturation and density groundwater flow in coastal zones, the highly nonlinear system of coupled water-salt equations may deserve more attention.
Meng Yao   +7 more
doaj   +1 more source

Modified energy for split-step methods applied to the linear Schr\"odinger equation [PDF]

open access: yes, 2009
We consider the linear Schr\"odinger equation and its discretization by split-step methods where the part corresponding to the Laplace operator is approximated by the midpoint rule. We show that the numerical solution coincides with the exact solution of
Debussche, Arnaud, Faou, Erwan
core   +4 more sources

Computation of periodic solution bifurcations in ODEs using bordered systems [PDF]

open access: yes, 2002
We consider numerical methods for the computation and continuation of the three generic secondary periodic solution bifurcations in autonomous ODEs, namely the fold, the period-doubling (or flip) bifurcation, and the torus (or Neimark–Sacker) bifurcation.
Doedel, E. J.   +2 more
core   +2 more sources

Solution of the contact problem on indentation of rectangular punch in an elastic roughnesses half-space in the presence of coulomb friction

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
The numerical solution of the static three-dimensional contact problem of the indentation of a rectangular stamp with a flat base in an elastic rough half-space in the presence of Coulomb friction and previously unknown adhesion and slip zones is ...
Alexandr I Alexandrov, Elena V Grabko
doaj   +1 more source

Numerical Solution for the Single-Impulse Flyby Co-Orbital Spacecraft Problem

open access: yesAerospace, 2022
The traversal inspection of satellites in satellite constellations or geosynchronous orbits has been a focus of research. A large number of variable orbit requirements in the “single-to-single” mode severely affects the efficiency of inspections.
Haoxiang Su   +3 more
doaj   +1 more source

Modeling of Bending Non-Isothermal Viscoelasticviscoplastic Dynamic Deformation of Shallow Reinforced Shells. Part 1. Problem Formulation and Solution Method

open access: yesМеханика машин, механизмов и материалов
The problem of dynamic non-isothermal viscoelastic-viscoplastic deformation of flexible reinforced shallow shells and curved panels is formulated.
Andrei P. Yankovskii
doaj   +1 more source

Radiation Effect on MHD Stagnation-Point Flow of a Nanofluid over an Exponentially Stretching Sheet

open access: yesWalailak Journal of Science and Technology, 2014
This paper theoretically investigates the radiation effect on magnetohydrodynamics (MHD) stagnation-point flow of a nanofluid over an exponentially stretching sheet under the assumptions of a small magnetic Reynolds number. The sheet is stretched with an
Imran ANWAR   +2 more
doaj   +1 more source

A numerical solution of problem for essentially loaded differential equations with an integro-multipoint condition

open access: yesOpen Mathematics, 2022
We study a linear boundary value problem for systems of essentially loaded differential equations with an integro-multipoint condition. We make use of the numerical implementation of the Dzhumabaev parametrization method to obtain the desired result ...
Kadirbayeva Zhazira M.   +1 more
doaj   +1 more source

A New ODE-Based Model for Tumor Cells and Immune System Competition

open access: yesMathematics, 2020
Changes in diet are heavily associated with high mortality rates in several types of cancer. In this paper, a new mathematical model of tumor cells growth is established to dynamically demonstrate the effects of abnormal cell progression on the cells ...
Sana Abdulkream Alharbi   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy