English

Simultaneous approximation and interpolation of functions on continua in the complex plane

Complex Variables 2013-07-23 v1 Classical Analysis and ODEs

Abstract

We construct polynomial approximations of Dzjadyk type (in terms of the k-th modulus of continuity, k1k \ge 1) for analytic functions defined on a continuum E in the complex plane, which simultaneously interpolate at given points of E. Furthermore, the error in this approximation is decaying as ecnαe^{-cn^\alpha} strictly inside E, where c and α\alpha are positive constants independent of the degree n of the approximating polynomial.

Keywords

Cite

@article{arxiv.math/0005032,
  title  = {Simultaneous approximation and interpolation of functions on continua in the complex plane},
  author = {V. V. Andrievskii and I. E. Pritsker and R. S. Varga},
  journal= {arXiv preprint arXiv:math/0005032},
  year   = {2013}
}

Comments

21 page; submitted to J. Math. Pures Appl