Results 11 to 20 of about 106,224 (286)

On the Stability of a Forward–Backward Heat Equation [PDF]

open access: yesIntegral Equations and Operator Theory, 2012
21 pages, 3 ...
Boulton, Lyonell   +2 more
openaire   +2 more sources

Optimal Filtering for the Backward Heat Equation [PDF]

open access: yesSIAM Journal on Numerical Analysis, 1996
The purpose of this paper is to find an a priori initial bound for optimal filtering for backward heat equation. It is shown how this may be implemented computationally with error estimates. The feasibility of this work for practical computation is limited. No numerical experiment is performed.
openaire   +2 more sources

Efficient Computation of Heat Distribution of Processed Materials under Laser Irradiation

open access: yesMathematics, 2021
In this paper, a solution is provided to solve the heat conduction equation in the three-dimensional cylinder region, where the laser intensity of the material irradiation surface is expressed as a Gaussian distribution.
Jianxin Zhu, Wencheng Lin
doaj   +1 more source

A nonlinear Bismut-Elworthy formula for HJB equations with quadratic Hamiltonian in Banach spaces [PDF]

open access: yes, 2019
We consider a Backward Stochastic Differential Equation (BSDE for short) in a Markovian framework for the pair of processes $(Y,Z)$, with generator with quadratic growth with respect to $Z$.
Addona, Davide   +2 more
core   +2 more sources

Regularity for some backward heat equations [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2010
We study boundary value problems for backward parabolic heat equations with the Cauchy condition at the initial time, i.e. at the 'wrong' end of the time interval. We found that existence, uniqueness and regularity of solutions can still be achieved for the problem with boundary inputs.
openaire   +2 more sources

Numerical implementation of BBM in FE package for solving unsaturated soil boundary value problems [PDF]

open access: yesE3S Web of Conferences, 2023
Unsaturated soil mechanics is of keen relevance when dealing with soil above the water table orcompacted soils. Barcelona Basic Model (BBM) is one of the most widely used constitutive models for describing unsaturated soil behaviour and is available as a
Prajapati Vikas, Das Arghya
doaj   +1 more source

Unique Continuation for Stochastic Heat Equations [PDF]

open access: yes, 2014
We establish a unique continuation property for stochastic heat equations evolving in a bounded domain $G$. Our result shows that the value of the solution can be determined uniquely by means of its value on an arbitrary open subdomain of $G$ at any ...
Lu, Qi, Yin, Zhongqi
core   +2 more sources

Fully discrete finite element data assimilation method for the heat equation [PDF]

open access: yes, 2017
We consider a finite element discretization for the reconstruction of the final state of the heat equation, when the initial data is unknown, but additional data is given in a sub domain in the space time.
Burman, Erik   +2 more
core   +3 more sources

Fourier regularization for a backward heat equation

open access: yesJournal of Mathematical Analysis and Applications, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fu, Chu-Li, Xiong, Xiang-Tuan, Qian, Zhi
openaire   +2 more sources

Inverse Estimates for Nonhomogeneous Backward Heat Problems

open access: yesJournal of Applied Mathematics, 2014
We investigate the inverse problem in the nonhomogeneous heat equation involving the recovery of the initial temperature from measurements of the final temperature. This problem is known as the backward heat problem and is severely ill-posed.
Tao Min, Weimin Fu, Qiang Huang
doaj   +1 more source

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