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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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An asymptotic property of the roots of polynomials
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by Hermann Flaschka PDF
Proc. Amer. Math. Soc. 27 (1971), 451-456 Request permission

Abstract:

It is shown that if the imaginary parts of the roots ${\lambda _j}(s)$ of a polynomial $P(\lambda ,s),s \in {R^n}$, are unbounded for large $|s|$, then they are in fact unbounded along a one-parameter algebraic curve $s = s(R)$. The result may be used to reduce certain questions about polynomials in several variables to an essentially one-dimensional form; this is illustrated by an application to hyperbolic polynomials.
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Additional Information
  • © Copyright 1971 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 27 (1971), 451-456
  • MSC: Primary 35L40; Secondary 30A08
  • DOI: https://doi.org/10.1090/S0002-9939-1971-0303102-5
  • MathSciNet review: 0303102