Results 21 to 30 of about 101,397 (323)

A refinement of Baillon’s theorem on maximal regularity [PDF]

open access: yesStudia Mathematica, 2022
By Baillon's result, it is known that maximal regularity with respect to the space of continuous functions is rare; it implies that either the involved semigroup generator is a bounded operator or the considered space contains $c_{0}$. We show that the latter alternative can be excluded under a refined condition resembling maximal regularity with ...
Jacob, Birgit   +2 more
openaire   +3 more sources

On the inverse of the sum of two sectorial operators [PDF]

open access: yes, 2013
We study an abstract linear operator equation on a Banach space by using the inverse of the sum of two sectorial operators. We prove that the boundedness of a special type of operator valued $H^\infty$-calculus is sufficient for maximal regularity of the
Roidos, Nikolaos
core   +1 more source

Regularity of one-sided multilinear fractional maximal functions

open access: yesOpen Mathematics, 2018
In this paper we introduce and investigate the regularity properties of one-sided multilinear fractional maximal operators, both in continuous case and in discrete case.
Liu Feng, Xu Lei
doaj   +1 more source

Maximal Product of Graphs under Vague Environment

open access: yesMathematical and Computational Applications, 2020
Graph models are found everywhere in natural and human made structures, including process dynamics in physical, biological and social systems. The product of graphs are appropriately used in several combinatorial applications and in the formation of ...
Behnaz Sheikh Hoseini   +4 more
doaj   +1 more source

Numerical analysis of nonlinear subdiffusion equations [PDF]

open access: yes, 2017
We present a general framework for the rigorous numerical analysis of time-fractional nonlinear parabolic partial differential equations, with a fractional derivative of order $\alpha\in(0,1)$ in time.
Jin, Bangti, Li, Buyang, Zhou, Zhi
core   +2 more sources

Maximal $${\gamma}$$ γ -regularity

open access: yesJournal of Evolution Equations, 2015
In this paper, we prove maximal regularity estimates in “square function spaces” which are commonly used in harmonic analysis, spectral theory, and stochastic analysis. In particular, they lead to a new class of maximal regularity results for both deterministic and stochastic equations in L p -spaces with \({1 < p < {\infty} }\).
Neerven, J. van, Veraar, M., Weis, L.
openaire   +5 more sources

Endpoint regularity of discrete multilinear fractional nontangential maximal functions

open access: yesAdvances in Difference Equations, 2019
Given m≥1 $m\geq 1$, 0≤λ≤1 $0\leq \lambda \leq 1$, and a discrete vector-valued function f→=(f1,…,fm) $\vec{f}=(f_{1},\ldots,f_{m})$ with each fj:Zd→R $f_{j}:\mathbb{Z} ^{d}\rightarrow \mathbb{R}$, we consider the discrete multilinear fractional ...
Daiqing Zhang
doaj   +1 more source

ОЦЕНКА МАКСИМАЛЬНОЙ РЕГУЛЯРНОСТИ ДЛЯ ДИФФЕРЕНЦИАЛЬНОГО УРАВНЕНИЯ С КОЛЕБЛЮЩИМИСЯ КОЭФФИЦИЕНТАМИ

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
В работе рассматривается дифференциальное уравнение второго порядка с неограниченными коэффициентами. Получены достаточные условия суммируемости с весом решения и его производных вплоть до второго порядка.
A. N. Yesbayev, K. N. Ospanov
doaj   +1 more source

Regularized nonmonotone submodular maximization

open access: yesOptimization, 2023
In this paper, we present a thorough study of maximizing a regularized non-monotone submodular function subject to various constraints, i.e., $\max \{ g(A) - \ell(A) : A \in \mathcal{F} \}$, where $g \colon 2^ \to \mathbb{R}_+$ is a non-monotone submodular function, $\ell \colon 2^ \to \mathbb{R}_+$ is a normalized modular function and $\mathcal{F ...
Lu, Cheng, Yang, Wenguo, Gao, Suixiang
openaire   +2 more sources

Maximal regular boundary value problems in Banach-valued function spaces and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
The nonlocal boundary value problems for differential operator equations of second order with dependent coefficients are studied. The principal parts of the differential operators generated by these problems are non-selfadjoint.
Veli B. Shakhmurov
doaj   +1 more source

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