Fourth Hankel determinant for the family of functions with bounded turning
Bull. Korean Math. Soc. 2018 Vol. 55, No. 6, 1703-1711
Published online November 30, 2018
Muhammad Arif, Lubna Rani, Mohsan Raza, Pawel Zaprawa
Abdul Wali Khan University, Abdul Wali Khan University, Government College University, Lublin University of Technology
Abstract : The main aim of this paper is to study the fourth Hankel determinant for the class of functions with bounded turning. We also investigate for $2$-fold symmetric and $3$-fold symmetric functions.
Keywords : bounded turning functions, Hankel determinant
MSC numbers : 30C45, 30C50
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