Results 81 to 90 of about 5,950,409 (217)
Initial Coefficient Bounds of Convex Functions Related to Pascal Snail Function
Journal of Mathematics, Volume 2026, Issue 1, 2026.For −1 ≤ λ ≤ 1, let Cλ be a subclass of convex functions associated with the Pascal snail function, analytically defined by the subordination relation, (1 + τf″(τ)/f′(τ))≺1/(1 − λτ). In this article, we have presented the initial coefficient bounds for the functions f in the class Cλ. We have also established the bounds on the Hankel determinants |H2,1(
Arooj Fatima +4 more
wiley +1 more source
, 2016 In this work, the sigmoid function in the space of univalent - peseudo starlike function with Sakaguchi type functions are investigated. The rst few coecient bounds for the class \ (s; t; ) were obtained.
S.O., Olatunji
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Coefficient Bounds and Stability for an Arctangent–Superexponential Convolution Class
Journal of Mathematics, Volume 2026, Issue 1, 2026.This paper presents a new convolution framework for normalized analytic functions in the open unit disk. The framework uses an arctangent and superexponential coefficient kernel, with each part serving a different purpose. The arctangent factor controls the early Taylor coefficients, while the cubic superexponential factor quickly reduces the higher ...
Sarem H. Hadi +6 more
wiley +1 more source
Some Geometric Characterizations of a Certain Class of Log-Harmonic Mappings
MathematicsThis article investigates structural properties of a class of log-harmonic mappings associated with starlike analytic functions in the unit disk. Beginning with a general representation of the log-harmonic mappings, we use sharp inequalities using ...
Madhusmita Mohanty +2 more
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A study of coefficient-related problems for symmetric starlike functions connected with a tan hyperbolic function [PDF]
The article aims to determine the sharp bounds of coefficients, Fekete-Szegö, Zalcman inequalities for the family SS∗ tanh of starlike function with respect to symmetric points linked with tan hyperbolic function. We also estimate determinant of |H2,2 (f)
Bilal, Muhammad +4 more
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A certain class of starlike functions
Computers & Mathematics with Applications, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +3 more sources
Integral operator and starlike functions
Computers & Mathematics with Applications, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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International Journal of Mathematics and Mathematical Sciences, 2000 Let f(z)=z+a2z2+a3z3+⋯ be an analytic function in the open unit disk. A sharp upper bound is obtained for |a3−μa22| by using the classes of strongly starlike functions of order β and type α when μ≥1.
B. A. Frasin, Maslina Darus
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On the class of functions strongly starlike of order α with respect to a point [PDF]
, 1998 We consider the class (k;w), k ∈ [0,2], w ∈ ℂ, of plane domains Ω called k-starlike with respect to the point w. An analytic characterization of regular and univalent functions f such that f(U) is in (k;w), where w ∈ f(U), is presented.
Lecko, Adam
core
Boundary behavior of starlike functions
, 1972 For a starlike function f, we impose a geometric condition on the image of the open unit disc by the mapping w = z f ′ ( z ) / f ( z
P. J. Eenigenburg
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