A variational method for parameter identification
نویسندگان
چکیده
منابع مشابه
Hartley Series Direct Method for Variational Problems
The computational method based on using the operational matrix of anorthogonal function for solving variational problems is computeroriented. In this approach, a truncated Hartley series together withthe operational matrix of integration and integration of the crossproduct of two cas vectors are used for finding the solution ofvariational problems. Two illustrative...
متن کاملSADDLE POINT VARIATIONAL METHOD FOR DIRAC CONFINEMENT
A saddle point variational (SPV ) method was applied to the Dirac equation as an example of a fully relativistic equation with both negative and positive energy solutions. The effect of the negative energy states was mitigated by maximizing the energy with respect to a relevant parameter while at the same time minimizing it with respect to another parameter in the wave function. The Cornell pot...
متن کاملParameter Identification by a Generalised Secant Method
An efficient secant-method based algorithm for solving nonlinear least squares problem is presented which showed good stability and convergence properties even with relatively high number of unknowns and large system response deviations. The trial solutions were generated by a special transformation in each iteration step. The distance between observed and simulated system responses were define...
متن کاملA multilevel model correction method for parameter identification
Output least-squares formulation with Tikhonov regularization is one of the most frequently used and reliable methods for parameter identification in PDEs. As the discretized optimization system of the formulation is nonlinear, illconditioned, and constrained with some PDEs, its numerical solution is very time-consuming and often unstable. In this paper, we present a multilevel model correction...
متن کاملA numerical technique for solving a class of 2D variational problems using Legendre spectral method
An effective numerical method based on Legendre polynomials is proposed for the solution of a class of variational problems with suitable boundary conditions. The Ritz spectral method is used for finding the approximate solution of the problem. By utilizing the Ritz method, the given nonlinear variational problem reduces to the problem of solving a system of algebraic equations. The advantage o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ESAIM: Mathematical Modelling and Numerical Analysis
سال: 1988
ISSN: 0764-583X,1290-3841
DOI: 10.1051/m2an/1988220101191