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- Title
A root-distribution criterion for an interval polynomial in a sector.
- Authors
LEVKOVICH, A.; COHEN, N.; ZEHEB, E.
- Abstract
A simple test is proposed for checking whether a given interval polynomial ℱ of degree n has robust root distribution with respect to a given symmetric sector in the complex plane. The test amounts to checking the real roots of at most 2n real polynomials with fixed coefficients, of degree n. The test is based on a detailed analysis of the value set ℱ(s) as s travels along the sector boundary. A simple algorithm for implementing this test, and an example, are also provided.
- Publication
IMA Journal of Mathematical Control & Information, 1996, Vol 13, Issue 4, p321
- ISSN
0265-0754
- Publication type
Article
- DOI
10.1093/imamci/13.4.321