Lashin, A. (2016). On certain subclasses of analytic and bi-univalent functions. test, 24(2), 220-225. doi: 10.1016/j.joems.2015.04.004
A. Y. Lashin. "On certain subclasses of analytic and bi-univalent functions". test, 24, 2, 2016, 220-225. doi: 10.1016/j.joems.2015.04.004
Lashin, A. (2016). 'On certain subclasses of analytic and bi-univalent functions', test, 24(2), pp. 220-225. doi: 10.1016/j.joems.2015.04.004
Lashin, A. On certain subclasses of analytic and bi-univalent functions. test, 2016; 24(2): 220-225. doi: 10.1016/j.joems.2015.04.004

On certain subclasses of analytic and bi-univalent functions

Journal of the Egyptian Mathematical Society
Volume 24, Issue 2, 2016, Pages 220-225    PDF (363.75 K)
DOI: 10.1016/j.joems.2015.04.004
Author
A. Y. Lashin
Department of Mathematics, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
Abstract
In this paper, we introduced two interesting subclasses of the function class σ of analytic
and bi-univalent functions in the open unit disk U . Estimates on the first two Taylor–Maclaurin
coefficients | a 2 | and | a 3 | for functions belonging to these classes are determined. Certain special
cases are also indicated.
Keywords
Univalent functions; Bi-univalent functions; Starlike with respect to symmetric points
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