Geodesic
Inequalities for Modulus of Rational Functions
Dalʹnevostočnyj matematičeskij žurnal, Tome 12 (2012) no. 2, pp. 231-236.

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Inequalities for modulus of rational functions with prescribed poles lying in the exterior of the unit disk were obtained in this research. The case when the rational function has no zeros in the unit disk has also been considered. 
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S. I. Kalmykov. Inequalities for Modulus of Rational Functions. Dalʹnevostočnyj matematičeskij žurnal, Tome 12 (2012) no. 2, pp. 231-236. http://geodesic.mathdoc.fr/item/DVMG_2012_12_2_a8/

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