Abstract
This paper is an addition to the paper [3], where it was proved that the theorem about the null space of the classical Sylvester resultant matrix also holds for its continuous analogue for entire matrix function provided that a certain so-called quasi-commutativity condition is fulfilled. In the present paper we show that this quasi-commutativity condition is not only sufficient but also necessary.
The third author gratefully acknowledges the support of the Glasberg-Klein Research Fund at the Technion.
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References
I. Gohberg and G. Heinig, The resultant matrix and its generalizations, II. Continual analog of resultant matrix, Acta Math. Acad. Sci. Hungar 28 (1976), 198–209 [in Russian].
I. Gohberg and N. Krupnik, Introduction to the theory of one dimensional singular integral operators, Ştiinţa, Kishinev, 1973.
I. Gohberg, M.A. Kaashoek, and L. Lerer, The continuous analogue of the resultant and related convolution operators, in: Proceedings IWOTA 2004, to appear.
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Dedicated to I.B. Simonenko, with respect and admiration, on the occasion of his 70th birthday.
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© 2006 Birkhäuser Verlag Basel/Switzerland
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Gohberg, I., Kaashoek, M.A., Lerer, L. (2006). Quasi-commutativity of Entire Matrix Functions and the Continuous Analogue of the Resultant. In: Erusalimsky, Y.M., Gohberg, I., Grudsky, S.M., Rabinovich, V., Vasilevski, N. (eds) Modern Operator Theory and Applications. Operator Theory: Advances and Applications, vol 170. Birkhäuser Basel. https://doi.org/10.1007/978-3-7643-7737-3_7
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DOI: https://doi.org/10.1007/978-3-7643-7737-3_7
Publisher Name: Birkhäuser Basel
Print ISBN: 978-3-7643-7736-6
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