Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-11T02:25:39.646Z Has data issue: false hasContentIssue false

How Good is Hadamard’s Inequality for Determinants?

Published online by Cambridge University Press:  20 November 2018

John D. Dixon*
Affiliation:
Department of Mathematics and Statistics, Carleton University, Ottawa, CanadaK1S 5B6
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Let A be a real n × n matrix and define the Hadamard ratio h(A) to be the absolute value of det A divided by the product of the Euclidean norms of the columns of A. It is shown that if A is a random variable whose distribution satisfies some simple symmetry properties then the random variable log h(A) has mean and variance . In particular, for each ε > 0, the probability that h(A) lies in the range tends to 1 as n tends to ∞.

Keywords

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1984

References

1. Cabay, S. and Lam, T. P. L., Congruence techniques for the exact solution of integer systems of linear equations, ACM Trans. Math. Software 3 (1977) 386397.Google Scholar
2. Dixon, J. D., Estimating extremal eigenvalues and condition numbers of matrices, SIAM J. Numer. Anal., 20 (1983), 812814.Google Scholar
3. Johnson, C. R. and Newman, M., How bad is the Hadamard determinantal bound?, J. Res. Nat. Bureau Stand. 78B (1974) 167169.Google Scholar
4. Shiue, J. S., On a generalization of a theorem of Johnson and Newman, Soochow J. Math. Natur. Sci. 2 (1976) 5761.Google Scholar
5. Szekeres, G., The average value of skew Hadamard matrices, in Proc. First Austral. Conf. Combinatorial Math. (Newcastle, 1972), pp. 5559.Google Scholar
6. Szekeres, G. and Turán, P., On an extremal problem in determinant theory, Mat. természett. Ertes. 56 (1937) 796–804 (Hungarian) (see Zbl. Math. 18 (1938) 387).Google Scholar
7. Wilks, S. S., Mathematical Statistics, Wiley, New York, 1962.Google Scholar