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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

Primary Decomposition of Ideals Arising from Hankel Matrices

( Volume 4 Issue 6,June 2017 ) OPEN ACCESS
Author(s):

Katie Brodhead

Abstract:

Hankel matrices have many applications in various fields ranging from engineering to computer science. Their internal structure gives them many special properties.  In this paper we focus on the structure of the set of polynomials generated by the minors of generalized Hankel matrices whose entries consist of indeterminates with coefficients from a field k. A generalized Hankel matrix M has in its jth codiagonal constant multiples of a single variable Xj. Consider now the ideal in the polynomial ring k[X1, ... , Xm+n-1] generated by all (r Í r)-minors of M.  An important structural feature of the ideal is its primary decomposition into an intersection of primary ideals.  This decomposition is analogous to the decomposition of a positive integer into a product of prime powers.  Just like factorization of integers into primes, the primary decomposition of an ideal is very difficult to compute in general. Recent studies have described the structure of the primary decomposition of.  However, the case when r > 2 is substantially more complicated. We will present an analysis of the primary decomposition of  for generalized Hankel matrices up to size 5 Í 5.

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