A generalization of the zero location theorem of Schur and Cohn
- 1 October 1980
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Automatic Control
- Vol. 25 (5) , 978-980
- https://doi.org/10.1109/tac.1980.1102476
Abstract
The well-known Schur-Cohn test for the number of zeros of a polynomial inside the unit circle is deduced from a simple matrix identity. The present proof is not only shorter than earlier ones, but also more general: it produces an infinity of Hermitian forms which can be used in the same way as Schur's form.Keywords
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