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Solvability by Real Radicals and Fermat Primes

Open Access article
  Published:2004-06-01
 Printed: Jun 2004
  • C. U. Jensen
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Abstract

We give a survey of old and new results concerning the expressibility of the real roots of a solvable polynomial over a real number field by real radicals. A characterization of Fermat primes is obtained in terms of solvability by real radicals for certain ploynomials.
 

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