|
General order multivariate Padé approximants for Pseudo-multivariate functions. II
Author(s):
Ping
Zhou;
Annie
Cuyt;
Jieqing
Tan.
Journal:
Math. Comp.
78
(2009),
2137-2155.
MSC (2000):
Primary 41A21
Posted:
February 2, 2009
MathSciNet review:
2521282
Retrieve article in:
PDF
Abstract |
References |
Similar articles |
Additional information
Abstract:
Explicit formulas for general order multivariate Padé approximants of pseudo-multivariate functions are constructed on specific index sets. Examples include the multivariate forms of the exponential function the logarithm function the Lauricella function and many more. We prove that the constructed approximants inherit the normality and consistency properties of their univariate relatives. These properties do not hold in general for multivariate Padé approximants. A truncation error upperbound is also given.
References:
-
- 1.
- P. Appell and J. Kampé de Fériet, Fonctions hypergéométriques et hypersphériques: polynômes d'Hermite, Paris: Gauthier-Villars, 1926.
- 2.
- G. A. Baker, Jr. and P. Graves-Morris, Padé approximants, Part I: Basic Theory, Encyclopedia of Mathematics and Its Applications 13 (Addison-Wesley, Reading, MA, 1981). MR 635619 (83a:41009a)
- 3.
- A. Cuyt, How well can the concept of Padé approximant be generalized to the multivariate case?, J. Comp. Appl. Math. 105 (1999) 25-50. MR 1690577 (2000e:41029)
- 4.
- A. Cuyt, K. Driver, and D. Lubinsky, A direct approach to convergence of multivariate nonhomogeneous Padé approximants, J. Comp. Appl. Math. 69 (1996), 353-366. MR 1395293 (97g:41018)
- 5.
- A. Cuyt, K. Driver, and D. Lubinsky, Kronecker type theorems, normality and continuity of the multivariate Padé operator, Numer. Math. 73 (1996), 311-327. MR 1389490 (97g:41019)
- 6.
- A. Cuyt, J. Tan, and P. Zhou, General order multivariate Padé approximants for pseudo-multivariate functions, Math. Comput. 75 (2006), 727-741. MR 2196989 (2006i:41013)
- 7.
- G. Lauricella, Sulla funzioni ipergeometriche a più variabili, Rend. Circ. Math. Palermo 7(1893), 111-158.
- 8.
- M. Reimer, Constructive theory of multivariate functions, Manheim. Wien. Zürich, Wissenschaftsverlag, 1990. MR 1115901 (92m:41003)
- 9.
- J. Stoer and R. Bulirsch, Introduction to Numerical Analysis, Springer-Verlag, New York, 1993. MR 1295246 (95i:65006)
- 10.
- J. Tan and P. Zhou, On the finite sum representations of the Lauricella function
, Adv. Comp. Math. 23 (2005), 333-351. MR 2137460 (2006e:33020) - 11.
- P. Zhou, More examples on general order multivariate Padé approximants for pseudo-multivariate functions, Electron. Trans. Numer. Anal. 25 (2006), 302-308. MR 2280379 (2007k:41035)
Similar Articles:
Retrieve articles in Mathematics of Computation
with
MSC (2000):
41A21
Retrieve articles in all Journals with
MSC (2000):
41A21
Additional Information:
Ping
Zhou
Affiliation:
Department of Mathematics, Statistics and Computer Science, St. Francis Xavier University, Antigonish, NS, Canada, B2G 2W5
Email:
pzhou@stfx.ca
Annie
Cuyt
Affiliation:
Department of Mathematics and Computer Science, University of Antwerp, Middelheimlaan 1, B-2020 Antwerpen, Belgium
Email:
annie.cuyt@ua.ac.be
Jieqing
Tan
Affiliation:
Institute of Applied Mathematics, Hefei University of Technology, 193 Tunxi Road, 230009 Hefei, People's Republic of China
Email:
jqtan@mail.hf.ah.cn
DOI:
10.1090/S0025-5718-09-02226-1
PII:
S 0025-5718(09)02226-1
Keywords:
Multivariate Pad\'{e} approximants,
pseudo-multivariate functions
Received by editor(s):
August 10, 2007
Received by editor(s) in revised form:
September 5, 2008
Posted:
February 2, 2009
Additional Notes:
The first author's research is supported by NSERC of Canada
The second author is Research Director of FWO-Vlaanderen
The third author's research is supported by the National Natural Science Foundation of China under Grant No. 60473114
Copyright of article:
Copyright
2009,
American Mathematical Society
|