Results 81 to 90 of about 2,697,831 (219)

On Starlike and Convex Functions with Respect to 2k-Symmetric Conjugate Points

open access: yes, 2016
[[abstract]]In the present paper, two new classes S(k) sc () and C(k) sc () of func- tions starlike and convex with respect to 2k-symmetric conjugate points are introduced.
Wang, Zhi-gang, Gao, Chun-yi
core  

On a coefficient inequality for starlike functions

open access: yes, 1975
M. S. Robertson considered a coefficient inequality I I for starlike functions that, if true, would imply a generalized Bieberbach coefficient inequality B B for close to convex functions.
Roger W. Barnard
core   +1 more source

Fekete–Szegö Variations for Some New Classes of Analytic Functions Explained Over Poisson and Borel Distribution Series

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 8, Page 9241-9252, 30 May 2025.
ABSTRACT The motivation of this paper is to explore and generalize Sakaguchi‐type functions, which play a significant role in geometric function theory. In this context, we introduce four new classes of analytic univalent functions: ℑΨ,tb,α,ρ,ℑϑb,α,ρ,ℑΘ,mb,α,ρ$$ {\Im}_{\Psi, t}^{b,\alpha, \rho },\kern0.3em {\Im}_{\vartheta}^{b,\alpha, \rho },\kern0.3em
Arzu Akgül
wiley   +1 more source

Relations of Harmonic Starlike Function Subclasses with Mittag–Leffler Function

open access: yesAxioms
In this study, the connection between certain subfamilies of harmonic univalent functions is established by utilizing a convolution operator involving the Mittag–Leffler function.
Naci Taşar   +3 more
doaj   +1 more source

Q-Starlike Functions of Order Alpha

open access: yes, 2018
For all q is an element of (0, 1) and 0 <= alpha < 1 we define a class of analytic functions, so-called q-starlike functions of order alpha on the open unit disc D = {z : vertical bar z vertical bar < 1}.
POLATOĞLU, YAŞAR   +2 more
core   +2 more sources

A Study of Multivalent q-starlike Functions Connected with Circular Domain

open access: yesMathematics, 2019
Starlike functions have gained popularity both in literature and in usage over the past decade. In this paper, our aim is to examine some useful problems dealing with q-starlike functions.
Lei Shi   +4 more
doaj   +1 more source

Geometric properties of subclasses of starlike functions [PDF]

open access: yes, 2003
We present some geometric characterization of the class k-ST consisting of the so-called k-starlike ...
Wiśniowska, Agnieszka, Lecko, Adam
core   +1 more source

On the Gakhov Equation for the Biernacki Operator [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
The paper establishes the region in the parameter plane such that the image of any starlike function with the zero root of the Gakhov equation under the mapping by the Biernacki operator corresponding to the parameter of this region is found in the ...
A.V. Kazantsev
doaj  

Successive Coefficients of Starlike Functions [PDF]

open access: yesBulletin of the London Mathematical Society, 1978
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/135462/1/blms0193 ...
openaire   +3 more sources

On Janowski Starlike Functions

open access: yesJournal of Inequalities and Applications, 2007
For analytic functions in the open unit disc with and , applying the fractional calculus for , a new fractional operator is introduced. Further, a new subclass consisting of associated with Janowski function is defined.
Owa S   +4 more
doaj  

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