An improved upper bound on the Lebesgue constant of Berrut's rational interpolation operator

作者：Zhang, Ren-Jiang^*

来源：Journal of Computational and Applied Mathematics, 2014, 255: 652-660.

DOI：10.1016/j.cam.2013.06.030

• Rational interpolation
• Lebesgue constant
• Equidistant nodes

In approximation theory, the Lebesgue constant of an interpolation operator plays an important role. The Lebesgue constant of Berrut's interpolation operator has been studied recently. In the present work, an improved upper bound for equidistant nodes is given.

• 出版日期2014-1-1
• 单位浙江工商大学