Results 11 to 20 of about 287 (214)

Proportional factors estimation in an IHCP [PDF]

Journal of Hyperstructures, 2014
In this paper, a numerical scheme is developed based on mollification method and space marching scheme for solving an inverse heat conduction problem. The proposed inverse problem contains the estimation of two unknown functions at the boundaries named ...
Morteza Garshasbi, Hatef Dastour
doaj   +1 more source

Numerical solution of a time-fractional inverse source problem [PDF]

Journal of Hyperstructures, 2018
In this paper, an inverse problem of determining an unknown source term in a time-fractional diffusion equation is investigated. This inverse problem is severely ill-posed.
Afshin Babaei, Seddighe Banihashemi
doaj   +1 more source

Recovery of coefficients of a heat equation by Ritz collocation method

Kuwait Journal of Science, 2023
In this work, we discuss a one dimensional inverse problem for the heat equation where the unknown functions are solely time-dependent lower order coefficient and multiplicative source term. We use as data two integral overdetermination conditions along
Prof.Kamal Rashedi
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A Numerical Approximation Method for the Inverse Problem of the Three-Dimensional Laplace Equation

Mathematics, 2019
In this article, an inverse problem with regards to the Laplace equation with non-homogeneous Neumann boundary conditions in a three-dimensional case is investigated.
Shangqin He, Xiufang Feng
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A Regularization Method to Solve a Cauchy Problem for the Two-Dimensional Modified Helmholtz Equation

Mathematics, 2019
In this paper, the ill-posed problem of the two-dimensional modified Helmholtz equation is investigated in a strip domain. For obtaining a stable numerical approximation solution, a mollification regularization method with the de la Vallée Poussin ...
Shangqin He, Xiufang Feng
doaj   +1 more source

A Mollification Regularization Method for a Fractional-Diffusion Inverse Heat Conduction Problem [PDF]

Mathematical Problems in Engineering, 2013
The ill-posed problem of attempting to recover the temperature functions from one measured transient data temperature at some interior point of a one-dimensional semi-infinite conductor when the governing linear diffusion equation is of fractional type is discussed.
Deng, Zhi-Liang, Yang, Xiao-Mei, Feng, Xiao-Li   +2 more
openaire   +1 more source

A regularized version of the Kuwabara-Kono force scheme for 2nd order convergence in DEM simulations of granular materials [PDF]

EPJ Web of Conferences
The Discrete Element Method is a technique widely used to simulate multi-particle systems, in particular granular materials. For conservative systems, the integration of the equations of motion is often performed via a Verlet-type method of order two ...
Bufolo Gabriel N., Sobral Yuri D.
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The Advantage of Regularizing a Specific Elliptical Problem by the Truncation and Mollification Methods

, 2023
The try to prove the importance and advantage of using the truncation method and the mollification method to regularize an ill-posed elliptical problem. To find appropriate solutions, we will try to calculate the difference between the original solution and the approximate solution. We give a concrete example to see how to apply the theoretical results
YAMEOGO Pierre Claver, Dr. En Mathématiques   +1 more
openaire   +2 more sources

Mollification Effects of Policy Gradient Methods

CoRR
19 pages, 41 ...
Tao Wang, Sylvia L. Herbert, Sicun Gao
openaire   +3 more sources

A Fluid-Structure Interaction Model for Dam-Water Systems: Analytical Study and Application to Seismic Behavior

Advances in Mathematical Physics, 2019
We consider a dam-water system modeled as a fluid-structure interaction, specifically, a coupled hyperbolic second-order problem, formulated in terms of the displacement of the structure and the fluid pressure.
Ricardo Faria, Sérgio Oliveira, Ana L. Silvestre   +2 more
doaj   +1 more source