@Article{JCM-21-801,
author = {Xu , Guo-Liang},
title = {Some Nonlinear Approximations for Matrix-Valued Functions},
journal = {Journal of Computational Mathematics},
year = {2003},
volume = {21},
number = {6},
pages = {801--814},
abstract = {<p style="text-align: justify;">Some nonlinear approximants, i.e., exponential-sum interpolation with equal distance or at origin, (0,1)-type, (0,2)-type and (1,2)-type fraction-sum approximations, for matrix-valued functions are introduced. All these approximation problems lead to a same form system of nonlinear equations. Solving methods for the nonlinear system are discussed. Conclusions on uniqueness and convergence of the approximants for certain class of functions are given.</p>},
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/10236.html}
}