Results 21 to 30 of about 10,912 (293)

Maximal regularity for non-autonomous Cauchy problems in weighted spaces

open access: yesElectronic Journal of Differential Equations, 2020
We consider the regularity for the non-autonomous Cauchy problem $$ u'(t) + A(t) u(t) = f(t)\quad (t \in [0, \tau]), \quad u(0) = u_0. $$ The time dependent operator A(t) is associated with (time dependent) sesquilinear forms on a Hilbert space ...
Achache Mahdi, Tebbani Hossni
doaj   +1 more source

Adaptive Regularized Submodular Maximization

open access: yesCoRR, 2021
In this paper, we study the problem of maximizing the difference between an adaptive submodular (revenue) function and an non-negative modular (cost) function under the adaptive setting. The input of our problem is a set of $n$ items, where each item has a particular state drawn from some known prior distribution $p$.
Shaojie Tang 0001, Jing Yuan 0002
openaire   +4 more sources

The regularity of binomial edge ideals of graphs [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2020
In this paper, we study the Castelnuovo-Mumford regularity and the graded Betti numbers of the binomial edge ideals of some classes of graphs. Our special attention is devoted to a conjecture which asserts that the number of maximal cliques of a graph ...
Sara Saeedi Madani, Dariush Kiani
doaj   +1 more source

Maximal Regularity of the Discrete Harmonic Oscillator Equation

open access: yesAdvances in Difference Equations, 2009
We give a representation of the solution for the best approximation of the harmonic oscillator equation formulated in a general Banach space setting, and a characterization of -maximal regularity—or well posedness—solely in terms of ...
Lizama Carlos   +2 more
doaj   +2 more sources

L p − L q $L^{p}-L^{q}$ -Maximal regularity of the Van Wijngaarden–Eringen equation in a cylindrical domain

open access: yesAdvances in Difference Equations, 2020
We consider the maximal regularity problem for a PDE of linear acoustics, named the Van Wijngaarden–Eringen equation, that models the propagation of linear acoustic waves in isothermal bubbly liquids, wherein the bubbles are of uniform radius.
Carlos Lizama, Marina Murillo-Arcila
doaj   +1 more source

Boundedness of Singular Integral Operators with Operator-Valued Kernels and Maximal Regularity of Sectorial Operators in Variable Lebesgue Spaces

open access: yesJournal of Function Spaces, 2020
This paper is devoted to the maximal regularity of sectorial operators in Lebesgue spaces Lp⋅ with a variable exponent. By extending the boundedness of singular integral operators in variable Lebesgue spaces from scalar type to abstract-valued type, the ...
Qinghua Zhang, Yueping Zhu, Feng Wang
doaj   +1 more source

Transient changes in paretic and non-paretic isometric force control during bimanual submaximal and maximal contractions

open access: yesJournal of NeuroEngineering and Rehabilitation, 2020
Purpose The purpose of this study was to investigate transient bimanual effects on the force control capabilities of the paretic and non-paretic arms in individuals post stroke across submaximal and maximal force control tasks.
Hyun Joon Kim   +2 more
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 $g \colon 2^Ω\to \mathbb{R}_+$ is a non-monotone submodular function, $\ell \colon 2^Ω\to \mathbb{R}_+$ is a normalized modular function and $\mathcal{F}$ is
Cheng Lu, Wenguo Yang, Suixiang Gao
openaire   +2 more sources

Maximal Regularity Estimates and the Solvability of Nonlinear Differential Equations

open access: yesMathematics, 2022
We study a type of third-order linear differential equations with variable and unbounded coefficients, which are defined in an infinite interval. We also consider a non-linear generalization with coefficients that depends on an unknown function.
Myrzagali Ospanov, Kordan Ospanov
doaj   +1 more source

Regularized Submodular Maximization at Scale

open access: yesCoRR, 2020
In this paper, we propose scalable methods for maximizing a regularized submodular function $f = g - \ell$ expressed as the difference between a monotone submodular function $g$ and a modular function $\ell$. Indeed, submodularity is inherently related to the notions of diversity, coverage, and representativeness.
Ehsan Kazemi 0001   +3 more
openaire   +3 more sources

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