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Zapiski Nauchnykh Seminarov POMI, 2002, Volume 286, Pages 48–61
(Mi znsl1566)
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This article is cited in 3 scientific papers (total in 3 papers)
Regions of values of the systems $\{f(z_1),f(z_2),f'(z_2)\}$ and $\{f(z_1),f'(z_1),f''(z_1)\}$ on the class of typically real functions
E. G. Goluzina St. Petersburg Department of V. A. Steklov Institute of Mathematics, Russian Academy of Sciences
Abstract:
Let $T$ be the class of functions $f(z)=z+a_2z^2+\dots$ that are regular in the unit disk and satisfy the condition $\operatorname{Im}f(z)\operatorname{Im}z>0$ for $\operatorname{Im}\ne0$, and let $z_1$ and $z_2$ be any distinct fixed points in the disk $|z|<1$. For the systems of functionals mentioned in the title, the regions of values on $T$ are studied. As a corollary, the regions of values of $f'(z_2)$ and $f''(z_1)$ on the subclasses of functions in $T$ with fixed values $f(z_1),f(z_2)$ and $f(z_1),f'(z_1)$, respectively, are found.
Received: 10.09.2002
Citation:
E. G. Goluzina, “Regions of values of the systems $\{f(z_1),f(z_2),f'(z_2)\}$ and $\{f(z_1),f'(z_1),f''(z_1)\}$ on the class of typically real functions”, Analytical theory of numbers and theory of functions. Part 18, Zap. Nauchn. Sem. POMI, 286, POMI, St. Petersburg, 2002, 48–61; J. Math. Sci. (N. Y.), 122:6 (2004), 3608–3615
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https://www.mathnet.ru/eng/znsl1566 https://www.mathnet.ru/eng/znsl/v286/p48
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Abstract page: | 120 | Full-text PDF : | 38 |
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