Results 71 to 80 of about 4,127,898 (306)

SHARP CONDITIONS FOR WEIGHTED INTEGRABILITY OF q-DUNKL FOURIER TRANSFORMS

open access: yesПроблемы анализа
We obtain sufficient conditions for the weighted inte grability of the q-Dunkl Fourier transforms of functions from gen eralized integral Lipschitz classes. In the L^2 case, we prove the sharpness of these conditions.
S. S. Volosivets
doaj   +1 more source

Approximation of certain bivariate functions by almost Euler means of double Fourier series

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we study the degree of approximation of 2π-periodic functions of two variables, defined on T2=[−π,π]×[−π,π] $T^{2}=[-\pi,\pi]\times[-\pi,\pi]$ and belonging to certain Lipschitz classes, by means of almost Euler summability of their ...
Arti Rathore, Uaday Singh
doaj   +1 more source

A Relaxed Inertial Tseng’s Extragradient Method for Solving Split Variational Inequalities with Multiple Output Sets

open access: yesMathematics, 2023
Recently, the split inverse problem has received great research attention due to its several applications in diverse fields. In this paper, we study a new class of split inverse problems called the split variational inequality problem with multiple ...
Timilehin Opeyemi Alakoya   +1 more
doaj   +1 more source

Approximate amenability of Schatten classes, Lipschitz algebras and second duals of Fourier algebras

open access: yes, 2009
Amenability of any of the algebras described in the title is known to force them to be finite-dimensional. The analogous problems for \emph{approximate} amenability have been open for some years now.
Choi, Yemon, Ghahramani, Fereidoun
core   +2 more sources

A Coarse Geometric Approach to Graph Layout Problems

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT We define a range of new coarse geometric invariants based on various graph–theoretic measures of complexity for finite graphs, including treewidth, pathwidth, cutwidth and bandwidth. We prove that, for bounded degree graphs, these invariants can be used to define functions which satisfy a strong monotonicity property, namely, they are ...
Wanying Huang   +3 more
wiley   +1 more source

Polyanalytic Hardy decomposition of higher order Lipschitz functions

open access: yes, 2020
This paper is concerned with the problem of decomposing a higher order Lipschitz function on a closed Jordan curve $\Gamma$ into a sum of two polyanalytic functions in each open domain defined by $\Gamma$.
Blaya, Ricardo Abreu   +1 more
core  

Equivalences of Nonlinear Higher Order Fractional Differential Equations With Integral Equations

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6930-6942, April 2025.
ABSTRACT Equivalences of initial value problems (IVPs) of both nonlinear higher order (Riemann–Liouville type) fractional differential equations (FDEs) and Caputo FDEs with the corresponding integral equations are studied in this paper. It is proved that the nonlinearities in the FDEs can be L1$$ {L}^1 $$‐Carathéodory with suitable conditions.
Kunquan Lan
wiley   +1 more source

Approximation Theorem for New Modification of q-Bernstein Operators on (0,1)

open access: yesJournal of Function Spaces, 2021
In this work, we extend the works of F. Usta and construct new modified q-Bernstein operators using the second central moment of the q-Bernstein operators defined by G. M. Phillips.
Yun-Shun Wu   +3 more
doaj   +1 more source

On Boas-Type Problem [PDF]

open access: yes, 2005
R.P. Boas has found necessary and sufficient conditions of belonging of function to Lipschitz class. From his findings it turned out, that the conditions on sine and cosine coefficients for belonging of function to Lip α(0 < α < 1) are the same ...
Tikhonov, Sergey Yu.   +1 more
core  

A Characterisation of Lipschitz Classes on 0-Dimensional Groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
This paper is concerned with characterising, in terms of certain properties of their Fourier transforms, the Lipschitz functions of order α ( 0 > α > 1 ) \alpha (0 > \alpha > 1) defined on a locally compact metric 0 0 -dimensional Abelian group.
openaire   +1 more source

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