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Zapiski Nauchnykh Seminarov POMI, 2009, Volume 371, Pages 7–17
(Mi znsl3541)
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This article is cited in 2 scientific papers (total in 2 papers)
On the region of values of the system $\{c_2,f(z_1),f(z_2)\}$ in the class of typically real finctions
E. G. Goluzina St. Petersburg Department of V. A. Steklov Institute of Mathematics, Russian Academy of Sciences, St. Petersburg, Russia
Abstract:
The author's investigations in the well known class $T$ of typically real functions $f(z)$ in the disk $U=\{z\colon|z|<1\}$ are prolonged. The region of values of the system $\{c_2,f(z_1),f(z_2)\}$ in the class $T$ is investigated. As a corollary, the region of values $f(z_2)$ in the class of functions $f\in T$ with fixed values $c_2$ and $f(z_1)$ is determined. In the proof a criterion of decision power moment problem is used. Bibl. – 8 titles.
Key words and phrases:
typically real function, coefficient problems, region of values.
Received: 12.10.2009
Citation:
E. G. Goluzina, “On the region of values of the system $\{c_2,f(z_1),f(z_2)\}$ in the class of typically real finctions”, Analytical theory of numbers and theory of functions. Part 24, Zap. Nauchn. Sem. POMI, 371, POMI, St. Petersburg, 2009, 7–17; J. Math. Sci. (N. Y.), 166:2 (2010), 128–133
Linking options:
https://www.mathnet.ru/eng/znsl3541 https://www.mathnet.ru/eng/znsl/v371/p7
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Abstract page: | 298 | Full-text PDF : | 72 | References: | 69 |
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