Geodesic
CERTAIN SUBCLASSES OF CONVEX FUNCTIONS WITH POSITIVE AND MISSING COEFFICIENTS BY USING A FIXED POINT
NAJAFZADEH, SH.1 ; EBADIAN , A. 2 ; GORDJI, M. ESHAGHI 3
1 Department of Mathematics, Faculty of Science,, University of Maragheh, Maragheh, Iran
2 Department of Mathematics, Faculty of Science, Urmia University, Urmia, Iran
3 Department of Mathematics, Semnan University, P. O. Box 35195-363, Semnan, Iran.
Journal of nonlinear sciences and its applications, Tome 2 (2009) no. 4, p. 219-224.

Voir la notice de l'article provenant de la source International Scientific Research Publications

By considering a fixed point in unit disk $\Delta$, a new class of univalent convex functions is defined. Coefficient inequalities, integral operator and extreme points of this class are obtained.
DOI : 10.22436/jnsa.002.04.03
Classification : 30C45, 30C50
Keywords: Subordination, P-valent function, Coefficient estimate, Fixed point, Distortion bound, Convexity.

NAJAFZADEH, SH. 1 ; EBADIAN , A.  2 ; GORDJI, M. ESHAGHI  3

1 Department of Mathematics, Faculty of Science,, University of Maragheh, Maragheh, Iran
2 Department of Mathematics, Faculty of Science, Urmia University, Urmia, Iran
3 Department of Mathematics, Semnan University, P. O. Box 35195-363, Semnan, Iran. 
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NAJAFZADEH, SH.; EBADIAN , A. ; GORDJI, M. ESHAGHI . CERTAIN SUBCLASSES OF CONVEX FUNCTIONS WITH POSITIVE AND MISSING COEFFICIENTS BY USING A FIXED POINT. Journal of nonlinear sciences and its applications, Tome 2 (2009) no. 4, p. 219-224. doi : 10.22436/jnsa.002.04.03. http://geodesic.mathdoc.fr/articles/10.22436/jnsa.002.04.03/

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