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Algebraic numbers of the form \(P(T)^{Q(T)}\) with \(T\) transcendental. (English) Zbl 1231.11077

Let \(P(x),Q(x)\in{\mathbb Q}[x]\) be non-constant polynomials. The author proves that the set of algebraic numbers of the form \(P(T)^{Q(T)}\), with \(T\) transcendental is dense in some connected subset either of \({\mathbb R}\) or \({\mathbb C}\).

MSC:

11J68 Approximation to algebraic numbers
11J81 Transcendence (general theory)

References:

[1] Lorenz, F.: Algebra, volume 1: fields and Galois theory . Springer-Verlag, New York 2006.
[2] Gelfond, A.O.: Sur le septi‘eme probl‘eme de Hilbert. Izv. Akad. Nauk SSSR 7 (1934), 623-630. · Zbl 0010.39302
[3] Schneider, T.: Transzendenzuntersuchungen periodischer Funktionen: I. Transzendenz von Potenzen; II. Transzendenzeigenschaften elliptischer Funktionen. J. Reine Angew. Math. 172 (1934), 65-74. · Zbl 0010.10501
[4] Sondow, J.; Marques, D.: Algebraic, irrational, and transcendental solutions of some exponential equa- tions. Preprint, 2009.
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