Results 61 to 70 of about 118 (108)
On the coefficient estimates for a subclass of m-fold symmetric bi-univalent functions
In this work, we introduce and investigate a subclass of analytic and bi-univalent functions when both f and f-1 are m-fold symmetric in the open unit disk U.
HOSSEINI, Seyed Hadi +3 more
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, 1957 Report presenting comparative low-speed cascade tests of the National Gas Turbine Establishment of Great Britain axial-flow compressor blade sections at a range of air-inlet angles and a solidity of 1.0 using the porous wall technique.
Emery, James C., Felix, A. Richard
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, 2019 The purpose of the present paper is to study the integral operator of the form ∫z0{Inμf(t)t}δdt where $f$ belongs to the subclass $C(n,\alpha,\beta, \mu)$ and $\delta$ is a real number.
SINGH, Surya Pratap, PORWAL, Saurabh
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Some properties of a class of holomorphic functions associated with tangent function
Demonstratio MathematicaIn this study, we define new class of holomorphic functions associated with tangent function. Furthermore, we examine the differential subordination implementation results related to Janowski and tangent functions. Also, we investigate some extreme point
Khan Muhammad Ghaffar +5 more
doaj +1 more source
HANKEL DETERMINANT FOR p-VALENT STARLIKE AND CONVEX FUNCTIONS OF ORDER
, 2015 . The objective of this paper is to obtain an upper bound to the second Hankel determinant jap+1ap+3 a2p+2j for p-valent starlike and convex functions of order , using Toeplitz determinants.
D. Vamshee Krishna, T. Ramreddy
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Coefficient estimates for a subclass of meromorphic bi-univalent functions defined by subordination
, 2020 In this work, we use the Faber polynomial expansion by a new method to find upper bounds for |bn| coefficients for meromorphic bi-univalent functions class Σ/ which is defined by subordination.
BULUT , Serap +4 more
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On Littlewood's Constants [PDF]
, 2017 In two papers, Littlewood studied seemingly unrelated constants: (i) the best α such that for any polynomial f, of degree n, the areal integral of its spherical derivative is at most ·nα, and (ii) the extremal growth rate rβ of the length of Green's ...
Beliaev, D., Smirnov, S.
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Convolution features of univalent meromorphic functions generated by Barnes-Mittag-Leffler function
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaThe Mittag-Leffler function plays an important role in Geometric Function Theory, particularly in the study of analytic and meromorphic function classes.
Yavuz Tuğba, Altınkaya Şahsene
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On some coefficient estimates for a class of p-valent functions
In this paper, we consider a class of p-valent functions. For functions in this class, we find sharp estimates for their first three coefficients. Upper bound for the second order, Hankel determinant is also obtained.
RĂDUCANU, Dorina +1 more
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A q-Rogers–Ramanujan-based characterization of q-bi-bounded turning functions
Demonstratio MathematicaThis study investigates the second Hankel determinant for a specific class of functions associated with the q-Rogers–Ramanujan polynomial. To accomplish this, we introduce a new subclass of q-bounded turning functions related to the q-Rogers–Ramanujan ...
Khan Bilal +4 more
doaj +1 more source