CERTAIN SUBCLASSES OF BI-UNIVALENT FUNCTIONS DEFINED BY DIFFERENTIAL OPERATOR

被引：0

作者：

Pathak, A. L. ^{[1
]}

Porwal, S. ^{[2
]}

Agarwal, R. ^{[3
]}

Shukla, Puneet ^{[1
]}

机构：

[1] Brahmanand PG Coll, Dept Math, Kanpur, UP, India

[2] Ram Sahay Govt Degree Coll, Dept Math, Kanpur 209205, UP, India

[3] CSJM Univ, UIET Campus, Dept Comp Applicat, Kanpur 208024, UP, India

来源：

JOURNAL OF RAJASTHAN ACADEMY OF PHYSICAL SCIENCES | 2023年 / 22卷 / 3-4期

关键词：

Analytic function; Univalent functions; Bi-univalent functions; Differential operator;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The main object of the present paper is to introduce two new subclasses of bi-univalent function defined by a differential operator. We obtain upper bound for coefficient I a2I and I a3I for these subclasses.

引用

页码：289 / 296

页数：8

共 8 条

[1]

Brannan D.A., 1979, P NATO ADV STUD I U

[2]

Duren P.L., 1983, GRUNDLEHREN MATH WIS, V259

[3] ON A COEFFICIENT PROBLEM FOR BI-UNIVALENT FUNCTIONS [J].

LEWIN, M .

PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 1967, 18 (01) :63-&

[4]

Makinde D.O., 2016, Theoretical Mathematics and Applications, V6, P71

[5]

Pathak A. L., 2018, IJMA, V9, P115

[6]

Porwal S., 2013, Journal of the Egyptian Mathematical Society, V21, P190, DOI [DOI 10.1016/J.J0EMS.2013.02.007, 10.1016/j.joems.2013.02.007, DOI 10.1016/J.JOEMS.2013.02.007]

[7] Certain subclasses of analytic and bi-univalent functions [J].

Srivastava, H. M. ;

Mishra, A. K. ;

Gochhayat, P. .

APPLIED MATHEMATICS LETTERS, 2010, 23 (10) :1188-1192

[8] Coefficient estimates for a certain subclass of analytic and bi-univalent functions [J].

Xu, Qing-Hua ;

Gui, Ying-Chun ;

Srivastava, H. M. .

APPLIED MATHEMATICS LETTERS, 2012, 25 (06) :990-994

← 1 →