We give sufficient coefficient conditions for normalized harmonic functions to map onto either starlike or convex regions. These conditions are also shown to be necessary when the coefficients are negative. This leads to distortion bounds and extreme points. © 1998 Academic Press.
CITATION STYLE
Silverman, H. (1998). Harmonic Univalent Functions with Negative Coefficients. Journal of Mathematical Analysis and Applications, 220(1), 283–289. https://doi.org/10.1006/jmaa.1997.5882
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