Riemann-Hilbert problem associated with Angelesco systems

[摘要] Angelesco systems of measures with Jacobi-type weights are considered. For such systems, strong asymptotics for the related multi pie orthogonal polynomials are found as well as the Szego-type functions. In the procedure, an approach from the Riemann-Hilbert problem plays a fundamental role. (C) 2009 Elsevier B.V. All rights reserved.

[发布日期] 2009-12-01

[效力级别]  Proceedings Paper

[关键词] Approximation by rational function;Rate of convergence;Simultaneous approximation