SOME NEW ASYMPTOTIC PROPERTIES FOR THE ZEROS OF JACOBI, LAGUERRE, AND HERMITE-POLYNOMIALS

被引:40
作者
DETTE, H [1 ]
STUDDEN, WJ [1 ]
机构
[1] PURDUE UNIV, DEPT STAT, W LAFAYETTE, IN 47907 USA
关键词
JACOBI POLYNOMIALS; LAGUERRE POLYNOMIALS; HERMITE POLYNOMIALS; ASYMPTOTIC ZERO DISTRIBUTION; CHAIN SEQUENCES;
D O I
10.1007/BF01203416
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For the generalized Jacobi, Laguerre, and Hermite polynomials P-n((alpha n,beta n))(x), L(n)((alpha n))(X), H-n((gamma n))(X) the limit distributions of the zeros are found, when the sequences alpha(n) or beta(n) tend to infinity with a larger order than n. The derivation uses special properties of the sequences in the corresponding recurrence formulas. The results are used to give second-order approximations for the largest and smallest zero which improve (and generalize) the limit statements in a paper by Moak, Saff, and Varga [11].
引用
收藏
页码:227 / 238
页数:12
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