Gröbner bases and generalized Padé approximation
نویسندگان
چکیده
منابع مشابه
Gröbner bases and generalized Padé approximation
It is shown how to find general multivariate Padé approximation using the Gröbner basis technique. This method is more flexible than previous approaches, and several examples are given to illustrate this advantage. When the number of variables is small compared to the degree of approximation, the Gröbner basis technique is more efficient than the linear algebra methods in the literature.
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Before surveying the results of the paper, we introduce path algebras. Path algebras play a central role in the representation theory of finite-dimensional algebras (Gabriel, 1980; Auslander et al., 1995; Bardzell, 1997) and the theory of Gröbner bases (Bergman, 1978; Mora, 1986; Farkas et al., 1993) has been an important tool in some results (Feustel et al., 1993; Green and Huang, 1995; Bardze...
متن کاملSome remarks on Fitzpatrick and Flynn's Gröbner basis technique for Padé approximation
In Fitzpatrick and Flynn (J. Symbolic Comput. 13 (1992) 133), a Gröbner basis technique for multivariable Padé approximation problems was developed under a rather restrictive hypothesis on the shape of the numerator and denominator in relation to the approximation conditions desired. In this article, we show that their hypotheses can be replaced by other less stringent conditions, and we show h...
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Gröbner bases were introduced by Buchberger (1965) and are now firmly established as a tool in Commutative Algebra and other areas. The reader is referred to Buchberger (1985), Cox, Little and O’Shea (1992) or Becker and Weispfenning (1993) for more information. Eisenbud (1995) places Gröbner bases within the context of more advanced Commutative Algebra. The ingredients for a Gröbner basis are ...
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ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 2005
ISSN: 0025-5718
DOI: 10.1090/s0025-5718-05-01790-4