The article of J. Clunie and T. Sheil-Small [3], published in 1984, intensified the investigations of complex functions harmonic in the unit disc Δ. In particular, many papers about some classes of complex mappings with the coefficient conditions have been published. Consideration of this type was undertaken in the period 1998-2004 by Y. Avci and E. Złotkiewicz [2], A. Ganczar [5], Z. J. Jakubowski, G. Adamczyk, A. Łazińska and A. Sibelska [1], [8], [7], H. Silverman [12] and J. M. Jahangiri [6], among others. This work continues the investigations described in [7]. Our results relate primarily to the order of starlikeness and convexity of functions of the aforementioned classes.
@article{bwmeta1.element.doi-10_2478_v10062-010-0007-9,
author = {Agnieszka Sibelska},
title = {On the order of starlikeness and convexity of complex harmonic functions with a two-parameter coefficient condition},
journal = {Annales UMCS, Mathematica},
volume = {64},
year = {2010},
pages = {81-91},
zbl = {1232.30015},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_v10062-010-0007-9}
}
Agnieszka Sibelska. On the order of starlikeness and convexity of complex harmonic functions with a two-parameter coefficient condition. Annales UMCS, Mathematica, Tome 64 (2010) pp. 81-91. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_v10062-010-0007-9/
Adamczyk, G., Łazińska, A., On some generalization of coefficient conditions for complex harmonic mappings, Demonstratio Math. 38 (2) (2004), 317-326. | Zbl 1071.30004
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