Given a subset X of a Dedekind domain D, and a polynomial F # D[x], the fixed divisor d(X, F) of F over X is defined to be the ideal in D generated by the elements F(a), a # X. In this paper we derive a simple expression for d(X, F) explicitly in terms of the coefficients of F, using a generalized n
Determinantal divisors of products of matrices over Dedekind domains
โ Scribed by Marc Ensenbach
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 132 KB
- Volume
- 432
- Category
- Article
- ISSN
- 0024-3795
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โฆ Synopsis
Given three lists of ideals of a Dedekind domain, the question is raised whether there exist two matrices A and B with entries in the given Dedekind domain, such that the given lists of ideals are the determinantal divisors of A, B, and AB, respectively. To answer this question, necessary and sufficient conditions are developed in this article.
๐ SIMILAR VOLUMES
The main result of this paper is the following: if both A = (a ij ) and B = (b ij ) are Mmatrices or positive definite real symmetric matrices of order n, the Hadamard product of A and B is denoted by A โข B, and A k and B k (k = 1, 2, . . . , n) are the k ร k leading principal submatrices of A and B