Konu "Coefficient estimates" için listeleme
Toplam kayıt 9, listelenen: 1-9
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Applications of chebyshev polynomials on ?-pseudo bi-starlike and ?-pseudo bi-convex functions with respect to symmetrical points
(Işık University Press, 2020)The purpose of this work is to use the Chebyshev polynomial expansions to seek upper bounds for the second and third coefficients of functions belongs to a subclass of ?-pseudo bi-starlike and ?-pseudo bi-convex functions ... -
Bounds for initial maclaurin coefficients for a new subclasses of analytic and M-fold symmetric BI-univalent functions
(Işık University Press, 2020)In the present paper, we introduce and study two new subclasses of the function class ?m consisting of analytic and m-fold symmetric bi-univalent functions in the open unit disk U. We establish upper bounds for the initial ... -
Coefficient estimates for new subclasses of meromorphic bi-univalent functions associated with linear operatör
(Işık University Press, 2022)In this paper, we define a new differential linear operator of meromorphic bi-univalent functions class ??, and obtain the estimates for the coefficients |b?| and |b?|. Further we pointed out several new or known consequences ... -
Estimating coefficients for subclasses of meromorphic bi-univalent functions associated with linear operator
(Işık University Press, 2014)In this paper we define a differential linear operator, applying it on the subclasses H??B (?, n, ?) of meromorphic starlike bi-univalent functions of order ?, and H?˜ ?B (?, n, ?) of meromorphic strongly starlike bi-univalent ... -
The Fekete-Szegö problems for a subclass of m-fold symmetric bi-univalent functions
(Işık University Press, 2021)In this paper, we investigate a new subclass P??? ?m(?, ?) of m-fold symmetric bi-univalent functions. Moreover, for functions of this subclass, we obtain the coefficient estimates of the Taylor-Maclaurin coefficients ... -
New classes of harmonic functions defined by fractional operator
(Işık University Press, 2018)In the present study, we introduce an investigation of new subclasses of harmonic functions which are defined by fractional operator. Firstly, using by fractional operator, we define new subclasses of harmonic functions. ... -
On a subclass of meromorphic functions defined by Hilbert space operator
(Işık University Press, 2022)In this paper we introduce and study a new subclass of meromorphic functions associated with a certain differential operator on Hilbert space. For this class, we obtain several properties like the coefficient inequality, ... -
On coefficient estimates for certain subclasses of bi-univalent functions
(Işık University Press, 2023-10)We introduce certain subclasses of bi-univalent functions related to the generalized Janowski functions and estimate the general coefficient bound for the newly defined classes. Also, we deduce certain new results and the ... -
On the coefficient bounds for a subclass of bi-univalent functions by using S?l?gean differential operators
(Işık University Press, 2023-10)Making use of S?l?gean differential operator, in this paper, we introduce and investigate an interesting subclass Sh,p? (k, ?) of bi-univalent functions in the open unit disk U. Furthermore, we find estimates on the |a2| ...