Results 61 to 70 of about 357,419 (186)
Upper bounds on two Hilbert coefficients
Journal of Algebra, 2023 22 ...
Le Xuan Dung, Juan Elias, Le Tuan Hoa
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Inverse and Logarithmic Coefficient Bounds of Concave Univalent Functions
AxiomsThe concept of coefficient estimates on univalent functions is one of the interesting aspects explored recently by many researchers. Motivated by this direction, in this present work, we obtain the upper bounds of initial inverse coefficients and ...
Kuppusami Sakthivel +2 more
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Mathematics, 2023 One of the challenging tasks in the study of function theory is how to obtain sharp estimates of coefficients that appear in the Taylor–Maclaurin series of analytic univalent functions, and for obtaining these bounds, researchers used the concepts of ...
Isra Al-Shbeil +4 more
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Bounds on OPE Coefficients from Interference Effects in the Conformal Collider
, 2017 We apply the average null energy condition to obtain upper bounds on the three-point function coefficients of stress tensors and a scalar operator, $\langle TT {\cal O } \rangle,$ in general CFTs.
Cordova, Clay +2 more
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On the Coefficient Problem of Meromorphic Harmonic Mappings
Demonstratio Mathematica, 2014 In this paper, we shall study estimates for the coefficients an, n = 1,2 of a class of univalent harmonic mappings defined on the exterior of the unit disk Ũ = { z : |z| > 1 }, which keep infinity fixed.
Widomski Jarosław
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, 2015 We establish formulas for the $b$-adic Walsh coefficients of functions in $C^\alpha[0,1]$ for an integer $\alpha \geq 1$ and give upper bounds on the Walsh coefficients of these functions. We also study the Walsh coefficients of periodic and non-periodic
Suzuki, Kosuke, Yoshiki, Takehito
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Coefficient Bounds for Certain Classes of Meromorphic Functions
Journal of Inequalities and Applications, 2008 Sharp bounds for are derived for certain classes and of meromorphic functions defined on the punctured open unit disk for which and , respectively, lie in a region starlike with respect to 1 and symmetric with respect to the real axis.
Suchithra K +3 more
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Estimates for Coefficients of Certain Analytic Functions
, 2017 For $ -1 \leq B \leq 1$ and $A>B$, let $\mathcal{S}^*[A,B]$ denote the class of generalized Janowski starlike functions consisting of all normalized analytic functions $f$ defined by the subordination $z f'(z)/f(z) \prec (1+ A z)/(1+ B z)$ $(|z|1)$ and ...
Ravichandran, V., Verma, Shelly
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Fractal and FractionalThe focus of the present work is on the establishment and investigation of the coefficient estimates of two new subclasses of bi-close-to-convex functions and bi-concave functions; these are of an Ozaki type and involve a modified Caputo’s fractional ...
Kaliappan Vijaya +4 more
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Certain Classes of Univalent Functions Associated With Deferential Operator [PDF]
Engineering and Technology Journal, 2017 The main objectives of this research work is to present and investigate thecertain subfamily of Bazilevic functions by making use the differential operatorwhich generalize of many operators presented by several authors, we have discussedand estimated on ...
M.S. A.Hussein
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