Results 51 to 60 of about 3,185,169 (199)

Characterization of Lipschitz Spaces via Commutators of Fractional Maximal Function on the $p$-Adic Variable Exponent Lebesgue Spaces

open access: yesComptes Rendus. Mathématique
In this paper, the main aim is to give some characterizations of the boundedness of the maximal or nonlinear commutator of the $p$-adic fractional maximal operator $ \mathcal{M}_{\alpha }^{p}$ with the symbols belong to the $p$-adic Lipschitz spaces in ...
Wu, Jianglong, Chang, Yunpeng
doaj   +1 more source

Estimates of Fractional Integral Operators on Variable Exponent Lebesgue Spaces

open access: yesJournal of Function Spaces, 2016
By some estimates for the variable fractional maximal operator, the authors prove that the fractional integral operator is bounded and satisfies the weak-type inequality on variable exponent Lebesgue spaces.
Canqin Tang, Qing Wu, Jingshi Xu
doaj   +1 more source

Exact Robust Filtering and Differentiation Based on Sliding Modes and Homogeneity

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This article addresses the problem of online estimation of the derivatives of a signal corrupted by measurement noise. The measured signal is modeled as the sum of a smooth nominal component and a uniformly bounded noise term. A key objective is to attenuate the effect of high‐frequency noise.
Jaime A. Moreno, Arie Levant
wiley   +1 more source

On small Lebesgue spaces

open access: yes, 2005
We consider a generalized version of the small Lebesgue spaces, introduced by Fiorenza as the associate spaces of the grand Lebesgue spaces. We find a simplified expression for the norm, prove relevant properties, compute the fundamental function and ...
FIORENZA, ALBERTO, C. CAPONE
core   +3 more sources

Multiplication Semigroups in Variable Exponent Lebesgue Spaces

open access: yesMathematics
This paper studies multiplication operators and their associated strongly continuous semigroups acting on variable exponent Lebesgue spaces. We study the abstract Cauchy problem u˙(t)=Au(t), u(0)=u0, in the space Lp(x)(0,ℓ) with ℓ>0, where the generator ...
Mostafa Bachar, Huda Alrashdi
doaj   +1 more source

Some estimates for commutators of sharp maximal function on the p-adic Lebesgue spaces

open access: yesOpen Mathematics, 2023
In this article, the main aim is to consider the boundedness of the nonlinear commutator of pp-adic sharp maximal operator ℳp♯{{\mathcal{ {\mathcal M} }}}_{p}^{\sharp } with symbols belonging to the pp-adic Lipschitz spaces in the context of the pp-adic ...
Wu Jianglong, Chang Yunpeng
doaj   +1 more source

Feedback Linearisation with State Constraints

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Feedback Linearisation (FBL) is a widely used technique that applies feedback laws to transform input‐affine nonlinear control systems into linear control systems, allowing for the use of linear controller design methods such as pole placement.
Songlin Jin, Yuanbo Nie, Morgan Jones
wiley   +1 more source

Landau-type theorem for variable Lebesgue spaces [PDF]

open access: yes, 2015
We describe, using elementary methods, the K\"othe dual of variable Lebesgue spaces \(L^{p(\cdot)},\) called also Nakano spaces, independenly for \(p(\cdot) \in (1, \infty)\) and \(p(\cdot) \in (0, 1)\).
Maligranda, Lech,   +3 more
core   +1 more source

Identifiability conditions in cognitive diagnosis: Implications for Q‐matrix estimation algorithms

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract The Q‐matrix of a cognitively diagnostic assessment (CDA), documenting the item‐attribute associations, is a key component of any CDA. However, the true Q‐matrix underlying a CDA is never known and must be estimated—typically by content experts.
Hyunjoo Kim   +2 more
wiley   +1 more source

Lebesgue and Sobolev spaces with variable exponents [PDF]

open access: yes, 2011
The field of variable exponent function spaces has witnessed an explosive growth in recent years. The standard reference article for basic properties is already 20 years old.
Diening, Lars ; https://orcid.org/   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy