Results 61 to 70 of about 732 (179)

Integral operator and starlike functions

open access: yesComputers & Mathematics with Applications, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

On the Eccentric Spectra of the Line Graph of Starlike Trees

open access: yesDiscrete Dynamics in Nature and Society, Volume 2025, Issue 1, 2025.
A tree is called starlike if it has exactly one vertex with a degree greater than two. In this paper, we determine the eccentricity spectrum of the line graphs of starlike trees and compute their eccentric energy. Furthermore, we establish that the eccentricity matrix of the line graph of any starlike tree is irreducible.
S. Balamoorthy   +4 more
wiley   +1 more source

The Fekete-Szegö Problem for p-Valently Janowski Starlike and Convex Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
For p-valently Janowski starlike and convex functions defined by applying subordination for the generalized Janowski function, the sharp upper bounds of a functional |ap+2−μa2p+1| related to the Fekete-Szegö problem are given.
Toshio Hayami, Shigeyoshi Owa
doaj   +1 more source

On a subclass of strongly starlike functions

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohamed Kamal Aouf   +2 more
openaire   +2 more sources

On the Fekete-Szegö problem

open access: yesInternational 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
doaj   +1 more source

On Starlike and Close-to-Convex Functions [PDF]

open access: yesProceedings of the London Mathematical Society, 1963
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/135466/1/plms0290 ...
openaire   +2 more sources

Parabolic starlike mappings of the unit ball $B^n$ [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2016
Let $f$ be a locally univalent function on the unit disk $U$. We consider the normalized extensions of $f$ to the Euclidean unit ball $B^nsubseteqmathbb{C}^n$ given by$$Phi_{n,gamma}(f)(z)=left(f(z_1),(f'(z_1))^gammahat{z}right),$$ where $gammain[0,1/2]$,
Samira Rahrovi
doaj  

A certain class of starlike functions

open access: yesComputers & Mathematics with Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Univalent and Starlike Properties for Generalized Struve Function

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2016
We derive conditions on the parameters p, b, and c so that the function zwp,b,c(z), where wp,b,c(z) is the normalized form of generalized Struve function, belongs to the class S1⁎(α). Also, some sufficient conditions for the function zwp,b,c(z), to be in
Aaisha Farzana Habibullah   +2 more
doaj   +1 more source

Certain classes of starlike functions. [PDF]

open access: yesMichigan Mathematical Journal, 1985
The author introduces a one parameter family of starlike mappings in the unit disk by proving that if f(z) is analytic in \(| z| 0. \] The proof is based on an extended version of the author's lemma in Trans. Am. Math. Soc. 76, 254-274 (1954; Zbl 0057.311). Some applications are also given.
openaire   +2 more sources

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