RT Journal Article
T1 Some properties of zeros of Sobolev-type orthogonal polynomials
A1 Alfaro, Manuel
A1 López Lagomasino, Guillermo
A1 Rezola, M. Luisa
AB For polynomials orthogonal with respect to a discrete Sobolev product, we prove that, for each n, Qn has at least n − m zeros on the convex hull of the support of the measure, where m denotes the number of terms in the discrete part. Interlacing properties of zeros are also described.
PB Elsevier
SN 0377-0427
YR 1996
FD 1996-04-30
LK http://hdl.handle.net/10016/6372
UL http://hdl.handle.net/10016/6372
LA eng
NO 9 pages, no figures.-- MSC1991 code: 33C45.
NO MR#: MR1391618 (97f:33008)
NO Zbl#: Zbl 0862.33005
NO Research by first (M.A.) and third (M.L.R.) authors was partially supported by Diputación General de Aragón P CB-12/91 and by Comisión Interministerial de Ciencia y Tecnología (CICYT-Spain) PB93-0228-C02-02.
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