Mixed and hybrid finite element methods
Mixed and hybrid finite element methods
Differentiation of approximately specified functions
American Mathematical Monthly
On stable numerical differentiation
Mathematics of Computation
Letter to the editor: Numerical differentiation for high orders by an integration method
Journal of Computational and Applied Mathematics
Differentiation by integration with Jacobi polynomials
Journal of Computational and Applied Mathematics
Error analysis of Jacobi derivative estimators for noisy signals
Numerical Algorithms
Convergence rate of the causal jacobi derivative estimator
Proceedings of the 7th international conference on Curves and Surfaces
Hi-index | 7.29 |
A regularized optimization problem for computing numerical differentiation for the second order derivatives of functions with two variables from noisy values at scattered points is discussed in this article. We prove the existence and uniqueness of the solution to this problem, provide a constructive scheme for the solution which is based on bi-harmonic Green's function and give a convergence estimate of the regularized solution to the exact solution for the problem under a simple choice of regularization parameter. The efficiency of the constructive scheme is shown by some numerical examples.