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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AUTHOR(S):

Katie Brodhead, Malarie Cummings, Cora Seidler

 

TITLE

Primary Decomposition of Ideals Arising from Hankel Matrices

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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.

KEYWORDS

Hankel, matrix, decomposition, ideal, Gröbner, basis, prime, primary, SINGULAR, polynomial, ring, minor, coefficient, Noetherian, field, commutative, algebra, irredundant, radical, factorization, component, algebraic, geometry, generator, normal, isolated, embedded

REFERENCES

[1] D. Cox, J. Little, & D. O'Shea, Ideals, Varieties and Algorithms, 2nd Ed., Springer-Verlag, New York, 1997.

[2] R. Fröberg , An Introduction to Gröbner Bases, John Wiley and Sons, New York, 1997.

[3] A. Guerrieri , I. Swanson , On the Ideal of Minors of Matrices of Linear Forms, . Preprint, 2000, pp. 1-9.

[4] R. Laubenbacher , Computational Algebra and Applications, Summer Institute in Mathematics Class Notes, 2000, pp. 1-48.

Cite this paper

Katie Brodhead, Malarie Cummings, Cora Seidler. (2017) Primary Decomposition of Ideals Arising from Hankel Matrices. International Journal of Mathematical and Computational Methods, 2, 372-381

 

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