- GENERALIZED Δ-COHERENT PAIRS
- GENERALIZED Δ-COHERENT PAIRS
- ㆍ 저자명
- Kwon. K.H.,Lee. J.H.,Marcellan. F.
- ㆍ 간행물명
- Journal of the Korean Mathematical Society
- ㆍ 권/호정보
- 2004년|41권 6호|pp.977-994 (18 pages)
- ㆍ 발행정보
- 대한수학회
- ㆍ 파일정보
- 정기간행물|ENG| PDF텍스트
- ㆍ 주제분야
- 기타
A pair of quasi-definite linear functionals {u$_{0}$, u$_1$} is a generalized $Delta$-coherent pair if monic orthogonal polynomials (equation omitted) relative to u$_{0}$ and u$_1$, respectively, satisfy a relation (equation omitted) where $sigma$$_{n}$ and T$_{n}$ are arbitrary constants and $Delta$p = p($chi$+1) - p($chi$) is the difference operator. We show that if {u$_{0}$, u$_1$} is a generalized $Delta$-coherent pair, then u$_{0}$ and u$_{1}$ must be discrete-semiclassical linear functionals. We also find conditions under which either u$_{0}$ or u$_1$ is discrete-classical.ete-classical.