On an estimate in the class of typically real functions
Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 27, Tome 404 (2012), pp. 75-82
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Let $T(c_2,c_3)$ be the class of functions $f(z)=z+\sum^\infty_{n=2}c_nz^n$ regular and typically real in the disk $|z|1$ with fixed values of the coefficients $c_2$ and $c_3$. The boundary functions of the region of values of $f(z_0)$ $(0|z_0|1)$ and sharp estimates for $f(r)$, $0$, in the class $T(c_2,c_3)$ are determined.
@article{ZNSL_2012_404_a3,
author = {E. G. Goluzina},
title = {On an estimate in the class of typically real functions},
journal = {Zapiski Nauchnykh Seminarov POMI},
pages = {75--82},
publisher = {mathdoc},
volume = {404},
year = {2012},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_404_a3/}
}
E. G. Goluzina. On an estimate in the class of typically real functions. Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 27, Tome 404 (2012), pp. 75-82. http://geodesic.mathdoc.fr/item/ZNSL_2012_404_a3/