The Christoffel function for orthogonal polynomials on a circular arc

[摘要] For the special type of weight functions on circular are we study the asymptotic behavior of the Christoffel kernel off the are and of the Christoffel function inside the are. We prove Totik's conjecture for the Christoffel function corresponding to such weight functions. (C) 1999 Academic Press.

[发布日期] 1999-12-01

[关键词] orthogonal polynomials on circular arc;Christoffel function;approximation