Hostname: page-component-7479d7b7d-m9pkr Total loading time: 0 Render date: 2024-07-10T09:31:32.442Z Has data issue: false hasContentIssue false

On certain inequalities for some regular functions defined on the unit disc

Published online by Cambridge University Press:  17 April 2009

Ming-Po Chen
Affiliation:
Institute of Mathematics, Academia Sinica, Nankang, Taipei, Taiwan, Republic of China
Ih-Ren Lan
Affiliation:
Institute of Mathematics, Academia Sinica, Nankang, Taipei, Taiwan, Republic of China
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this paper we obtain some inequalities for some regular functions f defined on the unit disc. Our results include or improve several previous results.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1987

References

[1]Bernardi, S. D., “Convex and starlike functions”, Trans. Amer. Math. Soc. 135 (1969), 429446.CrossRefGoogle Scholar
[2]Goel, R. M. and Sohi, N. S., “Subclasses of univalent functions”, Tamkang J. Math. 11 (1980), 7781.Google Scholar
[3]Jack, I. S., “Functions starlike and convex of order α”, J. London Math. Soc. (2) 3 (1971), 469474.CrossRefGoogle Scholar
[4]Libera, R. J., “Some classes of regular univalent functions”, Proc. Amer. Math. Soc. 16 (1965), 755758.CrossRefGoogle Scholar
[5]Obradovic, M., “Estimates of the real part of f (z)/z for some classes of univalent functions”, Mat. Vesnik 36 (4) (1984), 266270.Google Scholar
[6]Obradovic, M., “On certain inequalities for some regular functions in |z| < 1”, Internat. J. Math, and Math. Sci. 8 (1985), 677681.CrossRefGoogle Scholar
[7]Obradovic, M. and Owa, S., “On some results of convex functions of order α”, Mat. Vesnik, (to appear).Google Scholar
[8]Shukla, S. L. and Kumar, V., “Univalent functions defined by Ruscheweyh derivatives”, Internat. J. Math, and Math. Sci., 6 (1983), 483486.CrossRefGoogle Scholar
[9]Singh, S. and Singh, R., “New subclasses of univalent functions”, Indian Math. Soc., 43 (1979), 149159.Google Scholar
[10]Soni, A. K., “Generalizations of p-valent functions via the Hadamard product”, Internat. J. Math, and Math. Sci. 5 (1982) 289299.CrossRefGoogle Scholar
[11]Strohacker, E., “Beitrage zur theorie der schlichten funkitone”, Math. Z., 37 (1933), 256280.CrossRefGoogle Scholar