Search Results - subject:"Inverse Problem"

Inverse problem of time-dependent heat sources numerical reconstruction

Yang, Liu; Dehghan, Mehdi; Yu, Jian-Ning; Luo, Guan-Wei - In: Mathematics and Computers in Simulation (MATCOM) 81 (2011) 8, pp. 1656-1672

This work studies the inverse problem of reconstructing a time-dependent heat source in the heat conduction equation … several fields of applied science. By the Green’s function method, the inverse problem is reduced to an operator equation of … the first kind which is known to be ill-posed. The uniqueness of the solution for the inverse problem is obtained by the …

Persistent link: https://www.econbiz.de/10010749437

Comparingparameter choice methods for regularization of ill-posed problems

Bauer, Frank; Lukas, Mark A. - In: Mathematics and Computers in Simulation (MATCOM) 81 (2011) 9, pp. 1795-1841

In the literature on regularization, many different parameter choice methods have been proposed in both deterministic and stochastic settings. However, based on the available information, it is not always easy to know how well a particular method will perform in a given situation and how it...

Persistent link: https://www.econbiz.de/10010750046

Local linear regression for functional data

Berlinet, A.; Elamine, A.; Mas, A. - In: Annals of the Institute of Statistical Mathematics 63 (2011) 5, pp. 1047-1075

Persistent link: https://www.econbiz.de/10009325287

On the calibration of local jump-diffusion asset price models

Kindermann, S.; Mayer, P. - In: Finance and Stochastics 15 (2011) 4, pp. 685-724

Persistent link: https://www.econbiz.de/10009400206

Study of multiscale global optimization based on parameter space partition

Sun, Weitao; Dong, Yuan - In: Journal of Global Optimization 49 (2011) 1, pp. 149-172

Persistent link: https://www.econbiz.de/10008775637

Inverse resistivity problem: Geoelectric uncertainty principle and numerical reconstruction method

Mukanova, Balgaisha; Orunkhanov, Murat - In: Mathematics and Computers in Simulation (MATCOM) 80 (2010) 10, pp. 2091-2108

inverse problem of determination of the unknown leading coefficient (conductivity) of the elliptic equation in R2 in a slab … the considered inverse problem the logarithmic transformation is applied to the unknown coefficient and the inverse … problem is studied as a minimization problem for the cost functional, with respect to the reflection coefficient. The …

Persistent link: https://www.econbiz.de/10010870460

Manipulation with heterogeneity within a species population formulated as an inverse problem

Horváth, D.; Brutovsky, B.; Kočišová, J.; Šprinc, S. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 21, pp. 5028-5036

Dependence of the evolutionary dynamics on the population’s heterogeneity has been reliably recognized and studied within the frame of evolutionary optimization theory. As the causal relation between the heterogeneity and dynamics of environment has been revealed, the possibility to influence...

Persistent link: https://www.econbiz.de/10011063135

Optimization method for the inverse problem of reconstructing the source term in a parabolic equation

Yang, Liu; Deng, Zui-Cha; Yu, Jian-Ning; Luo, Guan-Wei - In: Mathematics and Computers in Simulation (MATCOM) 80 (2009) 2, pp. 314-326

This work investigates the inverse problem of reconstructing a spacewise dependent heat source in the parabolic heat … Landweber iteration algorithm is applied to the inverse problem and some numerical results are presented for various typical …

Persistent link: https://www.econbiz.de/10010870059

An approach for the identification of diffusion coefficients in the quasi-steady state of a post-discharge nitriding process

Fraguela, A.; Gómez, J.A.; Castillo, F.; Oseguera, J. - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 6, pp. 1878-1894

for computing the diffusion coefficients for post-discharge nitriding. The method is based upon an inverse problem of …

Persistent link: https://www.econbiz.de/10011050687

Determination of a time-dependent heat transfer coefficient from non-standard boundary measurements

Onyango, T.T.M.; Ingham, D.B.; Lesnic, D.; Slodička, M. - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 5, pp. 1577-1584

In this paper the determination of the time-dependent heat transfer coefficient in one-dimensional transient heat conduction from a non-standard boundary measurement is investigated. For this inverse nonlinear ill-posed problem the uniqueness of the solution holds. Numerical results obtained...

Persistent link: https://www.econbiz.de/10011050863