Results 131 to 140 of about 828 (215)

Second Hankel determinant of the logarithmic coefficients for a subclass of univalent functions

open access: yesMiskolc Mathematical Notes
In the present paper, we give the bounds for the second Hankel determinant of the logarithmic coefficients of a certain subclass of normalized univalent functions, which we have introduced here.
Hari Mohan Srivastava   +3 more
doaj   +1 more source

An upper bound to the second Hankel determinant for pre-starlike functions of order α

open access: yesLe Matematiche, 2015
The objective of this paper is to obtain an upper bound to the second Hankel determinant  for the function f and its inverse belonging to the class of pre-starlike functions of order alpha (0 ≤ alpha ≤ 1), using Toeplitz determinants.
Deekonda Vamshee Krishna, T. RamReddy
doaj  

Study of Second Hankel Determinant for Certain Subclasses of Functions Defined by Al-Oboudi Differential Operator

open access: yesمجلة بغداد للعلوم, 2020
The concern of this article is the calculation of an upper bound of second Hankel determinant for the subclasses of functions defined by Al-Oboudi differential operator in the unit disc.
K. A. Challab et al.
doaj  

Clutter Suppression for Indoor Self-Localization Systems by Iteratively Reweighted Low-Rank Plus Sparse Recovery. [PDF]

open access: yesSensors (Basel), 2021
Sánchez-Pastor J   +6 more
europepmc   +1 more source

Hankel determinant for a general subclass of m-fold symmetric bi-univalent functions defined by Ruscheweyh operator

open access: yes, 2023
Making use of the Hankel determinant and the Ruscheweyh derivative, in this work, we consider a general subclass of m-fold symmetric normalized bi-univalent functions defined in the open unit disk.
Sabir, Pishtiwan Othman   +5 more
core  

SOME VARIATIONS OF JANOWSKI TYPE FUNCTIONS ASSOCIATED WITH M-SYMMETRIC POINTS

open access: yesJournal of New Theory, 2016
In the present paper, we introduce a new subclass S m s (b, γ, A, B), of starlike functions with respect to m-symmetric points. Some basic properties, Integral representations, first Hankel determinant and convolution properties for the functions ...
Khalida İnayat Noor, Nasir Khan
doaj  

Second Hankel determinant for the class of Bazilevic functions

open access: yes, 2015
The objective of this paper is to obtain a sharp upper bound to the second Hankel determinant H2(2) for the function f when it belongs to the class of Bazilevic functions, using Toeplitz determinants.
D. VAMSHEE , Krishna, RAMREDDY, T.
core  

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