scholarly journals The Zeros of Orthogonal Polynomials and Markov–Bernstein Inequalities for Jacobi-Exponential Weights on (−1,1)

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Rong Liu

Let Ux=∏i=1rx−tipi, 0<p<∞, −1=tr<tr−1<⋯<t2<t1=1, r≥2, pi>−1/p, i=1,2,…,r, and W=e−Qx where Q:−1,1⟶0,∞. We give the estimates of the zeros of orthogonal polynomials for the Jacobi-Exponential weight WU on −1,1. In addition, Markov–Bernstein inequalities for the weight WU are also obtained.

1998 ◽  
Vol 50 (6) ◽  
pp. 1273-1297 ◽  
Author(s):  
D. S. Lubinsky

AbstractWe obtain necessary and sufficient conditions for mean convergence of Lagrange interpolation at zeros of orthogonal polynomials for weights on [-1, 1], such asw(x) = exp(-(1 - x2)-α), α > 0orw(x) = exp(-expk(1 - x2)-α), k≥1, α > 0,where expk = exp(exp(. . . exp( ) . . .)) denotes the k-th iterated exponential.


2012 ◽  
Vol 2012 ◽  
pp. 1-17
Author(s):  
Rong Liu ◽  
Ying Guang Shi

This paper gives the estimates of the zeros of orthogonal polynomials for Jacobi-exponential weights.


2011 ◽  
Vol 61 (7) ◽  
pp. 868-878
Author(s):  
Iván Area ◽  
Dimitar K. Dimitrov ◽  
Eduardo Godoy

2013 ◽  
Vol 175 ◽  
pp. 64-76 ◽  
Author(s):  
Dimitar K. Dimitrov ◽  
Mourad E.H. Ismail ◽  
Fernando R. Rafaeli

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