Results 11 to 20 of about 37,022 (174)

Hyper-Differential Sensitivity Analysis of Inverse Problems Governed by PDEs.

open access: goldProposed for presentation at the Joint Mathematics Meetings 2022 held January 5-8, 2022 in Seattle, Washington United State of America, 2021
Isaac Sunseri   +3 more
openalex   +2 more sources

Enhancing Computational Accuracy in Surrogate Modeling for Elastic–Plastic Problems by Coupling S-FEM and Physics-Informed Deep Learning

open access: yesMathematics, 2023
Physics-informed neural networks (PINNs) provide a new approach to solving partial differential equations (PDEs), while the properties of coupled physical laws present potential in surrogate modeling.
Meijun Zhou, Gang Mei, Nengxiong Xu
doaj   +1 more source

Inverse coefficient problem for differential equation in partial derivatives of a fourth order in time with integral over-determination

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
Derivatives in time of higher order (more than two) arise in various fields such as acoustics, medical ultrasound, viscoelasticity and thermoelasticity.
M.J. Huntul, I. Tekin
doaj   +1 more source

An efficient algorithm for some highly nonlinear fractional PDEs in mathematical physics. [PDF]

open access: yesPLoS ONE, 2014
In this paper, a fractional complex transform (FCT) is used to convert the given fractional partial differential equations (FPDEs) into corresponding partial differential equations (PDEs) and subsequently Reduced Differential Transform Method (RDTM) is ...
Jamshad Ahmad, Syed Tauseef Mohyud-Din
doaj   +1 more source

Modeling a Typical Non-Uniform Deformation of Materials Using Physics-Informed Deep Learning: Applications to Forward and Inverse Problems

open access: yesApplied Sciences, 2023
Numerical methods, such as finite element or finite difference, have been widely used in the past decades for modeling solid mechanics problems by solving partial differential equations (PDEs).
Yawen Deng   +5 more
doaj   +1 more source

On an inverse problem for a nonlinear third order in time partial differential equation

open access: yesResults in Applied Mathematics, 2022
In this article, first we convert an inverse problem of determining the unknown timewise terms of nonlinear third order in time partial differential equation (PDE) from knowledge of two boundary measurements to the auxiliary system of integral equations.
M.J. Huntul, I. Tekin
doaj   +1 more source

FDM data driven U-Net as a 2D Laplace PINN solver

open access: yesScientific Reports, 2023
Efficient solution of partial differential equations (PDEs) of physical laws is of interest for manifold applications in computer science and image analysis. However, conventional domain discretization techniques for numerical solving PDEs such as Finite
Anto Nivin Maria Antony   +2 more
doaj   +1 more source

Asymptotic expansion regularization for inverse source problems in two-dimensional singularly perturbed nonlinear parabolic PDEs [PDF]

open access: yesCSIAM Transactions on Applied Mathematics, 2022
In this paper, we develop an asymptotic expansion-regularization (AER) method for inverse source problems in two-dimensional nonlinear and nonstationary singularly perturbed partial differential equations (PDEs).
D. Chaikovskii, A. Liubavin, Ye Zhang
semanticscholar   +1 more source

Optimal experimental design for infinite-dimensional Bayesian inverse problems governed by PDEs: a review

open access: yesInverse Problems, 2021
We present a review of methods for optimal experimental design (OED) for Bayesian inverse problems governed by partial differential equations with infinite-dimensional parameters.
A. Alexanderian
semanticscholar   +1 more source

Hierarchical Matrix Approximations of Hessians Arising in Inverse Problems Governed by PDEs [PDF]

open access: yesSIAM Journal on Scientific Computing, 2020
Hessian operators arising in inverse problems governed by partial differential equations (PDEs) play a critical role in delivering efficient, dimension-independent convergence for both Newton solution of deterministic inverse problems, as well as Markov ...
Ilona Ambartsumyan   +7 more
semanticscholar   +1 more source

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