|
|
|
|
Fekete-Szego problems for analytic functions in the space of logistic sigmoid functions based on quasi-subordination
|
|
|
|
|
|
|
|
نویسنده
|
murugusundaramoorthy gangadharan ,olatunji sunday oluwafemi ,fadipe-joseph olubunmi a.
|
|
منبع
|
international journal of nonlinear analysis and applications - 2018 - دوره : 9 - شماره : 1 - صفحه:55 -68
|
|
چکیده
|
In this paper, we define new subclasses s∗q(α, φ), mq (α, φ) and lq (α, φ) of analytic functions in the space of logistic sigmoid functions based on quasi–subordination and determine the initial coefficient estimates |a2| and |a3| and also determine the relevant connection to the classical fekete–szego in-equalities. further, we discuss the improved results for the associated classes involving subordination and majorization results briefly.
|
|
کلیدواژه
|
univalent function; starlike function; quasi-subordination; logistic sigmoid function; Fekete-Szego inequality
|
|
آدرس
|
vit university, school of advanced sciences, department of mathematics, India, federal university of technology, department of mathematical sciences, Nigeria, university of ilorin, department of mathematics, Nigeria
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|