Díaz Mendoza, C.; González Vera, P.; Jiménez Paiz, M.; Njåstad, O. Radau and Lobatto-type quadratures associated with strong Stieltjes distributions. (English) Zbl 1312.65034 J. Comput. Appl. Math. 284, 184-201 (2015). MSC: 65D32 41A55 42C05 PDFBibTeX XMLCite \textit{C. Díaz Mendoza} et al., J. Comput. Appl. Math. 284, 184--201 (2015; Zbl 1312.65034) Full Text: DOI
Bultheel, Adhemar; Hendriksen, Erik; Njåstad, Olav Holomorphic functions associated with indeterminate rational moment problems. (English) Zbl 1390.30045 J. Comput. Appl. Math. 284, 101-114 (2015). MSC: 30E05 44A60 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 284, 101--114 (2015; Zbl 1390.30045) Full Text: DOI
Bultheel, Adhemar (ed.); López-Lagomasino, Guillermo (ed.); Marcellán, Francisco (ed.); Njåstad, Olav (ed.); Orive, Ramón (ed.) Foreword to the proceedings of the OrthoQuad 2014 conference. (English) Zbl 1310.00041 J. Comput. Appl. Math. 284, 1-9 (2015). MSC: 00B25 00B30 PDFBibTeX XMLCite \textit{A. Bultheel} (ed.) et al., J. Comput. Appl. Math. 284, 1--9 (2015; Zbl 1310.00041) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav Quadratures associated with pseudo-orthogonal rational functions on the real half line with poles in \([-\infty,0]\). (English) Zbl 1262.65041 J. Comput. Appl. Math. 237, 589-602 (2013). Reviewer: Ana-Maria Acu (Sibiu) MSC: 65D32 42C10 41A55 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 237, 589--602 (2013; Zbl 1262.65041) Full Text: DOI
Díaz-Mendoza, C.; González-Vera, P.; Jiménez Paiz, M.; Njåstad, O. Orthogonality and recurrence for ordered Laurent polynomial sequences. (English) Zbl 1202.30006 J. Comput. Appl. Math. 235, No. 4, 982-997 (2010). MSC: 30C10 33C45 42C05 PDFBibTeX XMLCite \textit{C. Díaz-Mendoza} et al., J. Comput. Appl. Math. 235, No. 4, 982--997 (2010; Zbl 1202.30006) Full Text: DOI
Bonan-Hamada, C.; Jones, W. B.; Njåstad, O. Zeros of orthogonal Laurent polynomials and solutions of strong Stieltjes moment problems. (English) Zbl 1206.44003 J. Comput. Appl. Math. 235, No. 4, 895-903 (2010). Reviewer: Florian-Horia Vasilescu (Villeneuve d’Ascq) MSC: 44A60 PDFBibTeX XMLCite \textit{C. Bonan-Hamada} et al., J. Comput. Appl. Math. 235, No. 4, 895--903 (2010; Zbl 1206.44003) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav An indeterminate rational moment problem and Carathéodory functions. (English) Zbl 1149.30001 J. Comput. Appl. Math. 219, No. 2, 359-369 (2008). Reviewer: Vasily A. Chernecky (Odessa) MSC: 30-06 30E05 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 219, No. 2, 359--369 (2008; Zbl 1149.30001) Full Text: DOI
Cruz-Barroso, Ruymán; Daruis, Leyla; González-Vera, Pablo; Njåstad, Olav Sequences of orthogonal Laurent polynomials, bi-orthogonality and quadrature formulas on the unit circle. (English) Zbl 1119.41025 J. Comput. Appl. Math. 206, No. 2, 950-966 (2007). MSC: 41A55 33C45 PDFBibTeX XMLCite \textit{R. Cruz-Barroso} et al., J. Comput. Appl. Math. 206, No. 2, 950--966 (2007; Zbl 1119.41025) Full Text: DOI
Njåstad, O.; Santos-León, J. C. Domain of validity of Szegő quadrature formulas. (English) Zbl 1109.41020 J. Comput. Appl. Math. 202, No. 2, 440-449 (2007). MSC: 41A55 PDFBibTeX XMLCite \textit{O. Njåstad} and \textit{J. C. Santos-León}, J. Comput. Appl. Math. 202, No. 2, 440--449 (2007; Zbl 1109.41020) Full Text: DOI
Cruz-Barroso, Ruymán; Daruis, Leyla; González-Vera, Pablo; Njåstad, Olav Sequences of orthogonal Laurent polynomials, bi-orthogonality and quadrature formulas on the unit circle. (English) Zbl 1136.42020 J. Comput. Appl. Math. 200, No. 1, 424-440 (2007). MSC: 42C05 65D32 33C99 PDFBibTeX XMLCite \textit{R. Cruz-Barroso} et al., J. Comput. Appl. Math. 200, No. 1, 424--440 (2007; Zbl 1136.42020) Full Text: DOI
Bultheel, A.; González-Vera, P.; Hendriksen, E.; Njåstad, O. Orthogonal rational functions on the real half line with poles in \([-\infty,0]\). (English) Zbl 1068.42022 J. Comput. Appl. Math. 179, No. 1-2, 121-155 (2005). Reviewer: Alexei Lukashov (Saratov) MSC: 42C05 65D32 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 179, No. 1--2, 121--155 (2005; Zbl 1068.42022) Full Text: DOI
Bultheel, A.; González-Vera, P.; Hendriksen, E.; Njåstad, O. Orthogonal rational functions and tridiagonal matrices. (English) Zbl 1014.42017 J. Comput. Appl. Math. 153, No. 1-2, 89-97 (2003). MSC: 42C05 30B70 65D32 30E05 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 153, No. 1--2, 89--97 (2003; Zbl 1014.42017) Full Text: DOI
Bultheel, A.; González-Vera, P.; Hendriksen, E.; Njåstad, O. Determinacy of a rational moment problem. (English) Zbl 0997.44005 J. Comput. Appl. Math. 133, No. 1-2, 241-252 (2001). Reviewer: C.L.Parihar (Indore) MSC: 44A60 42C05 30E05 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 133, No. 1--2, 241--252 (2001; Zbl 0997.44005) Full Text: DOI
Bultheel, A.; González-Vera, P.; Hendriksen, E.; Njåstad, Olav Quadrature and orthogonal rational functions. (English) Zbl 0970.41020 J. Comput. Appl. Math. 127, No. 1-2, 67-91 (2001). Reviewer: Marcel G.de Bruin (Delft) MSC: 41A55 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 127, No. 1--2, 67--91 (2001; Zbl 0970.41020) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav A density problem for orthogonal rational functions. (English) Zbl 0944.30021 J. Comput. Appl. Math. 105, No. 1-2, 199-212 (1999). Reviewer: Váslaw Burjan (Praha) MSC: 30E05 42C05 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 105, No. 1--2, 199--212 (1999; Zbl 0944.30021) Full Text: DOI
Jones, William B.; Njåstad, Olav Orthogonal Laurent polynomials and strong moment theory: A survey. (English) Zbl 0943.30024 J. Comput. Appl. Math. 105, No. 1-2, 51-91 (1999). Reviewer: Luigi Gatteschi (Torino) MSC: 30E05 30B70 40A15 41A21 PDFBibTeX XMLCite \textit{W. B. Jones} and \textit{O. Njåstad}, J. Comput. Appl. Math. 105, No. 1--2, 51--91 (1999; Zbl 0943.30024) Full Text: DOI
Lorentzen, Lisa (ed.); Njåstad, Olav (ed.); Rønning, Frode (ed.) Special issue: Continued fractions and geometric function theory (CONFUN) conference, Trondheim, Norway, June 24–28, 1997 in honor of Haakon Waadeland on the occasion of his 70th birthday. (English) Zbl 0943.00050 J. Comput. Appl. Math. 105, No. 1-2, 484 p. (1999). MSC: 00B25 30-06 PDFBibTeX XMLCite \textit{L. Lorentzen} (ed.) et al., J. Comput. Appl. Math. 105, No. 1--2, 484 p. (1999; Zbl 0943.00050) Full Text: DOI
Njåstad, Olav Nevanlinna matrices for the strong Stieltjes moment problem. (English) Zbl 0929.44003 J. Comput. Appl. Math. 99, No. 1-2, 311-318 (1998). Reviewer: Semen B.Yakubovich (Eindhoven) MSC: 44A60 33C45 30E05 32A22 PDFBibTeX XMLCite \textit{O. Njåstad}, J. Comput. Appl. Math. 99, No. 1--2, 311--318 (1998; Zbl 0929.44003) Full Text: DOI
Njåstad, Olav; Waadeland, Haakon Asymptotic properties of zeros of orthogonal rational functions. (English) Zbl 0864.42010 J. Comput. Appl. Math. 77, No. 1-2, 255-275 (1997). MSC: 42C05 94A11 PDFBibTeX XMLCite \textit{O. Njåstad} and \textit{H. Waadeland}, J. Comput. Appl. Math. 77, No. 1--2, 255--275 (1997; Zbl 0864.42010) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav Rates of convergence of multipoint rational approximants and quadrature formulas on the unit circle. (English) Zbl 0867.41012 J. Comput. Appl. Math. 77, No. 1-2, 77-101 (1997). Reviewer: J.Gilewicz (Marseille) MSC: 41A21 41A05 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 77, No. 1--2, 77--101 (1997; Zbl 0867.41012) Full Text: DOI
Njåstad, Olav Extremal solutions of the strong Stieltjes moment problem. (English) Zbl 0857.44003 J. Comput. Appl. Math. 65, No. 1-3, 309-318 (1995). Reviewer: P.K.Mital (Ajmer) MSC: 44A60 PDFBibTeX XMLCite \textit{O. Njåstad}, J. Comput. Appl. Math. 65, No. 1--3, 309--318 (1995; Zbl 0857.44003) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav Convergence of modified approximants associated with orthogonal rational functions. (English) Zbl 0898.42008 J. Comput. Appl. Math. 57, No. 1-2, 77-86 (1995). MSC: 42C05 41A20 30E10 41A30 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 57, No. 1--2, 77--86 (1995; Zbl 0898.42008) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav Favard theorem for reproducing kernels. (English) Zbl 0851.30001 J. Comput. Appl. Math. 57, No. 1-2, 57-76 (1995). Reviewer: A.Bultheel (Leuven) MSC: 30C15 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 57, No. 1--2, 57--76 (1995; Zbl 0851.30001) Full Text: DOI
Bultheel, Adhemar; Hendriksen, Erik; González-Vera, Pablo; Njåstad, Olav Quadrature formulas on the unit circle based on rational functions. (English) Zbl 0809.41027 J. Comput. Appl. Math. 50, No. 1-3, 159-170 (1994). MSC: 41A55 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 50, No. 1--3, 159--170 (1994; Zbl 0809.41027) Full Text: DOI
Bultheel, Adhemar; González-Vera, Pablo; Hendriksen, Erik; Njåstad, Olav Moment problems and orthogonal functions. (English) Zbl 0795.33003 J. Comput. Appl. Math. 48, No. 1-2, 49-68 (1993). Reviewer: H.Stahl (Berlin) MSC: 33C45 42C05 30E05 PDFBibTeX XMLCite \textit{A. Bultheel} et al., J. Comput. Appl. Math. 48, No. 1--2, 49--68 (1993; Zbl 0795.33003) Full Text: DOI
Jones, William B.; Thron, W. J.; Njåstad, Olav; Waadeland, Haakon Szegő polynomials applied to frequency analysis. (English) Zbl 0784.65105 J. Comput. Appl. Math. 46, No. 1-2, 217-228 (1993). Reviewer: G.Steidl (Darmstadt) MSC: 65T40 42C05 94A11 42A16 41A21 PDFBibTeX XMLCite \textit{W. B. Jones} et al., J. Comput. Appl. Math. 46, No. 1--2, 217--228 (1993; Zbl 0784.65105) Full Text: DOI
González-Vera, Pablo; Njåstad, Olav Szegö functions and multipoint Padé approximation. (English) Zbl 0721.30027 J. Comput. Appl. Math. 32, No. 1-2, 107-116 (1990). Reviewer: J.Karlsson (Göteborg) MSC: 30E10 41A21 30E05 PDFBibTeX XMLCite \textit{P. González-Vera} and \textit{O. Njåstad}, J. Comput. Appl. Math. 32, No. 1--2, 107--116 (1990; Zbl 0721.30027) Full Text: DOI
González-Vera, Pablo; Njåstad, Olav Convergence of two-point Padé approximants to series of Stieltjes. (English) Zbl 0721.30026 J. Comput. Appl. Math. 32, No. 1-2, 97-105 (1990). Reviewer: J.Karlsson (Göteborg) MSC: 30E10 41A21 PDFBibTeX XMLCite \textit{P. González-Vera} and \textit{O. Njåstad}, J. Comput. Appl. Math. 32, No. 1--2, 97--105 (1990; Zbl 0721.30026) Full Text: DOI
Jones, William B.; Njåstad, Olav; Saff, E. B. Szegö polynomials associated with Wiener-Levinson filters. (English) Zbl 0718.94002 J. Comput. Appl. Math. 32, No. 3, 387-406 (1990). Reviewer: M.Simersky (Praha) MSC: 94A11 41A21 PDFBibTeX XMLCite \textit{W. B. Jones} et al., J. Comput. Appl. Math. 32, No. 3, 387--406 (1990; Zbl 0718.94002) Full Text: DOI
Jones, William B.; Njåstad, Olav; Thron, W. J. Two-point Padé expansions for a family of analytic functions. (English) Zbl 0533.41014 J. Comput. Appl. Math. 9, 105-123 (1983). Reviewer: G.D.Taylor MSC: 41A21 PDFBibTeX XMLCite \textit{W. B. Jones} et al., J. Comput. Appl. Math. 9, 105--123 (1983; Zbl 0533.41014) Full Text: DOI