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DC Field | Value | Language |
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dc.contributor.author | Polezzi, M. | - |
dc.contributor.author | Ranga, A. Sri | - |
dc.date.accessioned | 2014-05-20T15:24:43Z | - |
dc.date.accessioned | 2016-10-25T17:59:02Z | - |
dc.date.available | 2014-05-20T15:24:43Z | - |
dc.date.available | 2016-10-25T17:59:02Z | - |
dc.date.issued | 2007-03-15 | - |
dc.identifier | http://dx.doi.org/10.1016/j.cam.2006.01.013 | - |
dc.identifier.citation | Journal of Computational and Applied Mathematics. Amsterdam: Elsevier B.V., v. 200, n. 2, p. 576-590, 2007. | - |
dc.identifier.issn | 0377-0427 | - |
dc.identifier.uri | http://hdl.handle.net/11449/35282 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/35282 | - |
dc.description.abstract | We improve upon the method of Zhu and Zhu [A method for directly finding the denominator values of rational interpolants, J. Comput. Appl. Math. 148 (2002) 341-348] for finding the denominator values of rational interpolants, reducing considerably the number of arithmetical operations required for their computation. In a second stage, we determine the points (if existent) which can be discarded from the rational interpolation problem. Furthermore, when the interpolant has a linear denominator, we obtain a formula for the barycentric weights which is simpler than the one found by Berrut and Mittelmann [Matrices for the direct determination of the barycentric weights of rational interpolation, J. Comput. Appl. Math. 78 (1997) 355-370]. Subsequently, we give a necessary and sufficient condition for the rational interpolant to have a pole. (c) 2006 Elsevier B.V. All rights reserved. | en |
dc.format.extent | 576-590 | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.source | Web of Science | - |
dc.subject | interpolation | pt |
dc.subject | rational interpolants | pt |
dc.subject | denominator values | pt |
dc.subject | barycentric weights | pt |
dc.title | On the denominator values and barycentric weights of rational interpolants | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual de Mato Grosso do Sul (UEMS) | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | UEMS, Cassilandia, MS, Brazil | - |
dc.description.affiliation | Univ Estadual Paulista, DCCE IBILCE, BR-15054000 Sao Jose do Rio Preto, SP, Brazil | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, DCCE IBILCE, BR-15054000 Sao Jose do Rio Preto, SP, Brazil | - |
dc.identifier.doi | 10.1016/j.cam.2006.01.013 | - |
dc.identifier.wos | WOS:000244279500010 | - |
dc.rights.accessRights | Acesso aberto | - |
dc.identifier.file | WOS000244279500010.pdf | - |
dc.relation.ispartof | Journal of Computational and Applied Mathematics | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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