In this paper we propose to investigate the use of a vectorial total variation model with spatially varying regularization and data terms for color image denoising and restoration. We pay attention to two main minimization problems: the minimization of a weighted vectorial total variation term TVg, which acts as a regularization term, using the L norm as data term or the minimization of the vec...

In this paper, we consider iterative algorithms of Uzawa type for solving linear nonsymmetric saddle point problems. Specifically, we consider systems, written as usual in block form, where the upper left block is an invertible linear operator with positive definite symmetric part. Such saddle point problems arise, for example, in certain finite element and finite difference discretizations of ...

The purpose of study is to examine the role guanxi or human networks on economic development. We are concerned with dynamic interdependence between wealth, and capital in a neoclassical growth model. Guanxi changes due investment networking can affect productivities activities. Establishing costs time, consumer goods goods. introduce into Solow-Uzawa simulate nonlinear system has unique stable ...