Results 31 to 40 of about 4,250 (145)

Periodic attractors of perturbed one-dimensional maps [PDF]

open access: yes, 2013
In this paper we investigate how many periodic attractors maps in a small neighbourhood of a given map can have. For this purpose we develop new tools which help to make uniform cross-ratio distortion estimates in a neighbourhood of a map with degenerate
Kozlovski, O.
core   +2 more sources

Dynamical Behaviour of the Light Pulses through the Optical Fiber: Two Nonlinear Atangana Conformable Fractional Evolution Equations

open access: yesJournal of Mathematics, Volume 2020, Issue 1, 2020., 2020
This study, using the extended simplest method of equation, examines the explicit movement solutions of both the Schwarzian Korteweg‐de Vries (SKdV) and (2 + 1)‐Ablowitz‐Kaup‐Newell‐Segur (AKNS.) equation. These models show the movement of the waves in optical fiber mathematically.
S. H. Alfalqi   +4 more
wiley   +1 more source

The Schwarzian derivative and univalent functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
In this paper we prove under certain conditions the function w = f ( z ) w = f(z) is univalent in | z | > 1 |z| > 1 .
Ozaki, Shigeo, Nunokawa, Mamoru
openaire   +2 more sources

On Coefficient Estimates for a Certain Class of Analytic Functions

open access: yesMathematics, 2022
In this paper, we consider a subclass SQ of normalized analytic functions f satisfying ℜf′(z)>1/2. For the functions in the class SQ, we determine upper bounds for a number of coefficient estimates, among which are initial coefficients, the second Hankel
Dorina Răducanu
doaj   +1 more source

The Norm Estimates of Pre-Schwarzian Derivatives of Spirallike Functions and Uniformly Convex $alpha$-spirallike Functions [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
For a constant $alphain left(-frac{pi}{2},frac{pi}{2}right)$,  we definea  subclass of the spirallike functions, $SP_{p}(alpha)$, the setof all functions $fin mathcal{A}$[releft{e^{-ialpha}frac{zf'(z)}{f(z)}right}geqleft|frac{zf'(z)}{f(z)}-1right|.]In ...
Zahra Orouji, Rasul Aghalary
doaj   +1 more source

On Becker's univalence criterion [PDF]

open access: yes, 2017
We study locally univalent functions $f$ analytic in the unit disc $\mathbb{D}$ of the complex plane such that $|{f"(z)/f'(z)}|(1-|z|^2)\leq 1+C(1-|z|)$ holds for all $z\in\mathbb{D}$, for some ...
Huusko, Juha-Matti, Vesikko, Toni
core   +2 more sources

Maximal chaos from strings, branes and Schwarzian action

open access: yesJournal of High Energy Physics, 2019
In this article, we explicitly demonstrate that, for a sufficiently generic class of examples, an open string embedded in an AdS-background yields an effective Schwarzian action and, in the semi-classical description, the fluctuation modes of the open ...
Avik Banerjee   +2 more
doaj   +1 more source

Injectivity and the pre-Schwarzian derivative. [PDF]

open access: yesMichigan Mathematical Journal, 1998
Let \(D\) be a simply connected domain in the complex plane, other than the plane itself and \(\rho_D|dz|\) be the hyperbolic metric of \(D\). The inner radius of injectivity \(\tau(D)\) is defined as the supremum of all numbers \(c\geq 0\) such that every analytic function \(f\) in \(D\) satisfying the bound \(|f''/f' |\leq c\rho_D\) is injective. The
openaire   +2 more sources

Schwarzian Derivative Criteria for Valence of Analytic and Harmonic Mappings

open access: yes, 2007
For analytic functions in the unit disk, general bounds on the Schwarzian derivative in terms of Nehari functions are shown to imply uniform local univalence and in some cases finite and bounded valence.
Chuaqui, M., Duren, P., Osgood, B.
core   +4 more sources

Steady States, Thermal Physics, and Holography

open access: yesAdvances in High Energy Physics, Volume 2019, Issue 1, 2019., 2019
It is well known that a Rindler observer measures a nontrivial energy flux, resulting in a thermal description in an otherwise Minkowski vacuum. For systems consisting of large number of degrees of freedom, it is natural to isolate a small subset of them and engineer a steady state configuration in which these degrees of freedom act as Rindler ...
Arnab Kundu, Cynthia Keeler
wiley   +1 more source

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