Weighted Lagrange interpolation with preassigned nodes on the real line (Articolo in rivista)

Type
Label
  • Weighted Lagrange interpolation with preassigned nodes on the real line (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.matcom.2013.12.004 (literal)
Alternative label
  • Capobianco M.R.; Criscuolo G. (2014)
    Weighted Lagrange interpolation with preassigned nodes on the real line
    in Mathematics and computers in simulation (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Capobianco M.R.; Criscuolo G. (literal)
Pagina inizio
  • 124 (literal)
Pagina fine
  • 132 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84895854925&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 106 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per le Applicazioni del Calcolo Mauro Picone - CNR, Sezione di Napoli, Via Pietro Castellino 111, 80131 Napoli, Italy; Dipartimento di Matematica e Applicazioni, Università degli Studi di Napoli Federico II, Complesso Monte Sant'Angelo, Edificio T, Via Cintia, 80126 Napoli, Italy (literal)
Titolo
  • Weighted Lagrange interpolation with preassigned nodes on the real line (literal)
Abstract
  • In a recent paper, we investigated the uniform convergence of Lagrange interpolation at the zeros of the orthogonal polynomials with respect to a Freud-type weight in the presence of constraints. We show that by a simple procedure it is always possible to transform the matrices of these zeros into matrices such that the corresponding Lagrange interpolating polynomial with respect to the given constraints well approximates a given function. Here, starting from the interest to construct a suitable interpolation operator with a preassigned node, we introduce an algorithm that allows us to obtain new matrices. For the Lagrange operator related to these new matrices that have the preassigned node among their elements, we prove results about the optimal rate of convergence as well as we apply successfully this method to some applications. © 2014 IMACS. (literal)
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