H. Akhadkulov

activity

20112021

most citedOn conjugations of circle homeomorphisms with two break points

12 citations · 14 across the 7 of their papers we have counts for

collaborators

8 papers

math.CA2021★ 1 cited

Notes on Krasnoselskii-type fixed-point theorems and their application to fractional hybrid differential problems

H. Akhadkulov, T. Y. Ying, A. B. Saaban +2

In this paper we prove a new version of Kransoselskii's fixed-point theorem under a ( $ψ, θ, φ$ )-weak contraction condition. The theoretical result is applied to prove the existence…

math.DS2021

Rigidity for circle diffeomorphisms with breaks satisfying a Zygmund smoothness condition

H. A. Akhadkulov, A. A. Dzhalilov, K. M. Khanin

Let $f$ and $f ~$ be two circle diffeomorphisms with a break point, with the same irrational rotation number of bounded type, the same size of the break $c$ and satisfying a…

math.FA2021

On multidimensional fixed-point theorems and their applications

H. Akhadkulov, S. Akhatkulov, T. Y. Ying +1

The purpose of this paper is to present some multidimensional fixed-point theorems and their applications. For this, we provide a multidimensional fixed point theorem and then usin…

math.FA2020★ 1 cited

Equivalence of Weighted DT-Moduli of (Co)convex Functions

Malik Saad Al-Muhja, Habibulla Akhadkulov, Nazihah Ahmad

The paper present new definitions for weighted DT moduli. Similarly, we a general outcome in an equivalence of moduli of smoothness are obtained. It is known that, any $r \in \math…

math.FA2020

Derivation of new Degrees for Best (Co)convex and Unconstrained Polynomial Approximation in $L_{p}^{α, β}$ space: I

Malik Saad Al-Muhja, Habibulla Akhadkulov, Nazihah Ahmad

The purpose of this work is to present the derivation and an estimate of the degrees of the best approximation based on convex, coconvex and unconstrained polynomials, and discuss…

math.DS2015

Renormalization of circle diffeomorphisms with a break-type singularity

Habibulla Akhadkulov, Mohd Salmi Md Noorani, Sokhobiddin Akhatkulov

Let $f$ be an orientation-preserving circle diffeomorphism with irrational rotation number and with a break point $ξ_{0},$ that is, its derivative $f^{'}$ has a jump discontinuity at…

math.DS2013

Nonrigidity of piecewise-smooth circle maps

Habibulla Akhadkulov, Akhtam Dzhalilov, Mohd Salmi Md. Noorani

Let $f_{i},$ $i = 1, 2$ be piecewise-smooth $C^{1}$ circle homeomorphisms with two break points, $lo g D f_{i},$ $i = 1, 2$ are absolutely continuous on each continuity intervals of $Df_{…

math.DS2011★ 12 cited

On conjugations of circle homeomorphisms with two break points

Habibulla Akhadkulov, Akhtam Dzhalilov, Dieter Mayer

Let $f_{i} \in C^{2 + α} (S^{1} ∖ {a_{i}, b_{i}}), α > 0, i = 1, 2$ be circle homeomorphisms with two break points $a_{i}, b_{i}$ , i.e. discontinuities in the derivative $f_{i}$ , with identical ir…