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 shor...Show MoreMetadata
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.
Published in: IEEE Transactions on Automatic Control ( Volume: 25, Issue: 5, October 1980)