Results 71 to 80 of about 118 (108)

Coefficient bounds for q-convex functions related to q-Bernoulli numbers

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
The main objective of this paper is to present and investigate a subclass 𝒞(b, q) of q-convex functions in the unit disk that is defined by the q-Bernoulli numbers.
Breaz Daniel, Orhan Halit, Arıkan Hava, Cotˆırlă Luminiţa-Ioana   +3 more
doaj   +1 more source

Bi- Starlike function of complex order involving Rabotnov function subordinated to Lucas Balancing polynomial

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
Considering the interesting results obtained recently by studying Rabotnov function, in this paper using the normalized Rabotnov function and the concept of subordination related with the Lucas Balancing polynomial, we defined two new subclasses of the ...
Vijaya K., Murugusundaramoorthy G., Breaz Daniel, Cotîrlă Luminiţa-Ioana   +3 more
doaj   +1 more source

Symmetric Toeplitz Determinants for Classes Defined by Post Quantum Operators Subordinated to the Limaçon Function

The present extensive study is focused to find estimates for the upper bounds of the Toeplitz determinants. The logarithmic coefficients of univalent functions play an important role in different estimates in the theory of univalent functions, and in ...
SANGARAMBADI PADMANABHAN, Vijayalakshmi, BULBOACĂ, Teodor, VINJIMUR SUDHARSAN, Thirumalai   +2 more
core   +1 more source

Bounds of third and fourth Hankel determinants for a generalized subclass of bounded turning functions subordinated to sine function

The objective of this paper is to investigate the bounds of third and fourth Hankel determinants for a generalized subclass of bounded turning functions associated with sine function, in the open unit disc E = {z ∈ C : |z| < 1}.
SINGH, Gagandeep, SINGH, Gurcharanjit
core   +1 more source

Application of Hölder Inequality in Generalised Convolutions for Functions with Respect to k-Symmetric Points

, 2009
Two classes of univalent functions with respect to k-symmetric points define on the unit disk satisfying the conditions: are given. The two inequalities of the functions belonging to these two classes are the starlike and convex functions with respect to
Malaysia Selangor D Ehsan, M Darus, K Al-Shaqsi, Malaysia Bangi, Universiti Kebangsaan   +4 more
core  

Certain subclass of close-to-convex univalent functions defined with q-derivative operator

The objective of this paper is to introduce a new subclass of strongly close-to-convex functions defined with q-derivative operator and by subordinating to generalized Janowski function.
SINGH, Gagandeep, SINGH, Gurcharanjit
core   +1 more source

New subclasses of univalent functions on the unit disc in C

In this paper we consider a differential operator Gk defined on the family of holomorphic normalized functions H0(U) that can be used in the construction of new subclasses of univalent functions on the unit disc U.
GRIGORICIUC, Eduard Stefan
core   +1 more source

Gegenbauer Polynomial Convolution for Bi-Univalent Functions with Applications to Image Enhancement

In this paper, we define a new subclass of bi-univalent functions by using convolution and Gegenbauer polynomials. We obtain the initial coefficient bounds and the Fekete-Szegö inequalities for functions belonging to this subclass.
V. SIVASANKARI, O. KARTHIYAYINI, TARAL D SHAH   +2 more
core   +1 more source

Estimating coefficients for certain subclasses of meromorphic and bi-univalent functions. [PDF]

J Inequal Appl, 2018
Sakar FM.
europepmc   +1 more source

Janowski type close-to-convex functions associated with conic regions. [PDF]

J Inequal Appl, 2017
Mahmood S, Arif M, Malik SN.
europepmc   +1 more source