Title
Noether's forms for the study of non-composite rational functions and their spectrum
Abstract
Abstract. In this paper, the spectrum and the decomposability of a multi- variate rational function are studied by means of the effective Noether’s irre- ducibility theorem given by Ruppert in [19]. With this approach, some new effective results are obtained. In particular, we show that the reduction modulo p of the spectrum of a given integer multivariate rational function r coincides with the spectrum of the reduction of r modulo p for p a prime integer greater or equal to an explicit bound. This bound is given in terms of the degree, the height and the number of variables of r. With the same strategy, we also study the decomposability of r modulo p. Some similar explicit results are also provided for the case of polynomials with coefficients inA = K[Z].
Year
DOI
Venue
2009
10.4064/aa147-3-2
Clinical Orthopaedics and Related Research
Keywords
Field
DocType
. spectrum,bertini's theorem,ostrowski's theorem,noether's theorem,composite rational function. 1,gcd,spectrum,noether s theorem,rational function
Prime (order theory),Integer,Algebra,Polynomial,Polynomial ring,Mathematical analysis,Modulo,Irreducibility,Noether's theorem,Rational function,Mathematics
Journal
Volume
Issue
ISSN
abs/0906.2
3
0065-1036
Citations 
PageRank 
References 
1
0.35
7
Authors
3
Name
Order
Citations
PageRank
Laurent Busé113114.74
Guillaume Chèze2849.52
Salah Najib310.35