Interlacing theorems for the zeros of some orthogonal polynomials from different sequences

Autor: Ferenc Toókos, Kerstin Jordaan
Rok vydání: 2009
Předmět:
Zdroj: Applied Numerical Mathematics. 59:2015-2022
ISSN: 0168-9274
DOI: 10.1016/j.apnum.2009.04.002
Popis: We study the interlacing properties of the zeros of orthogonal polynomials p"n and r"m, m=n or n-1 where {p"n}"n"="1^~ and {r"m}"m"="1^~ are different sequences of orthogonal polynomials. The results obtained extend a conjecture by Askey, that the zeros of Jacobi polynomials p"n=P"n^(^@a^,^@b^) and r"n=P"n^(^@c^,^@b^) interlace when @a
Databáze: OpenAIRE