Results 21 to 30 of about 414 (185)

A homomorphism theorem for bilinear multipliers [PDF]

open access: yesJournal of the London Mathematical Society, 2013
In this paper we prove an abstract homomorphism theorem for bilinear multipliers in the setting of locally compact Abelian (LCA) groups. We also provide some applications. In particular, we obtain a bilinear abstract version of K. de Leeuw's theorem for bilinear multipliers of strong and weak type.
openaire   +2 more sources

Semi-Smooth Newton Method for Solving 2D Contact Problems with Tresca and Coulomb Friction

open access: yesAdvances in Electrical and Electronic Engineering, 2013
The contribution deals with contact problems for two elastic bodies with friction. After the description of the problem we present its discretization based on linear or bilinear finite elements. The semi--smooth Newton method is used to find the solution,
Kristina Motyckova, Radek Kucera
doaj   +1 more source

Bilinear Fourier multipliers and the rate of decay of their derivatives [PDF]

open access: yesJournal of Approximation Theory, 2021
A revised version, to appear in J.
openaire   +2 more sources

Hyperspectral Unmixing with Bandwise Generalized Bilinear Model

open access: yesRemote Sensing, 2018
Generalized bilinear model (GBM) has received extensive attention in the field of hyperspectral nonlinear unmixing. Traditional GBM unmixing methods are usually assumed to be degraded only by additive white Gaussian noise (AWGN), and the intensity of ...
Chang Li   +6 more
doaj   +1 more source

ADMM-based distributed state estimation for integrated energy system

open access: yesCSEE Journal of Power and Energy Systems, 2019
In order to have an accurate knowledge of system-wide operation states, it is necessary to perform state estimation for the integrated energy system (IES) as the basis of energy management and control.
Yaxin Du, Wen Zhang, Tingting Zhang
doaj   +1 more source

Three-Stage Distributed State Estimation for AC-DC Hybrid Distribution Network Under Mixed Measurement Environment

open access: yesIEEE Access, 2018
The ac-dc hybrid distribution network is a credible path for the future evolution of distribution network. State estimation is a paramount foundation for the safe and stable operation of the complex distribution network.
Xiangrui Kong   +4 more
doaj   +1 more source

Bilinear oscillatory integrals and boundedness for new bilinear multipliers

open access: yesAdvances in Mathematics, 2010
We consider bilinear oscillatory integrals, i.e. pseudo-product operators whose symbol involves an oscillating factor. Lebesgue space inequalities are established, which give decay as the oscillation becomes stronger ; this extends the well-known linear theory of oscillatory integral in some directions.
Bernicot, Frederic, Germain, Pierre
openaire   +2 more sources

Bilinear Factorization via Augmented Lagrange Multipliers [PDF]

open access: yes, 2010
This paper presents a unified approach to solve different bilinear factorization problems in Computer Vision in the presence of missing data in the measurements. The problem is formulated as a constrained optimization problem where one of the factors is constrained to lie on a specific manifold. To achieve this, we introduce an equivalent reformulation
Alessio Del Bue   +3 more
openaire   +1 more source

Failure of the trilinear operator space Grothendieck theorem

open access: yesDiscrete Analysis, 2019
Failure of the trilinear operator space Grothendieck theorem, Discrete Analysis 2019:8, 16 pp. Let $\beta:\ell_\infty^n\times \ell_\infty^n\to\mathbb C$ be a bilinear form.
Jop Briët, Carlos Palazuelos
doaj   +1 more source

The Marcinkiewicz multiplier condition for bilinear operators [PDF]

open access: yesStudia Mathematica, 2001
This article is concerned with the question of whether Marcinkiewicz multipliers on $\mathbb R^{2n}$ give rise to bilinear multipliers on $\mathbb R^n\times \mathbb R^n$. We show that this is not always the case. Moreover we find necessary and sufficient conditions for such bilinear multipliers to be bounded. These conditions in particular imply that a
Grafakos, Loukas, Kalton, Nigel J.
openaire   +3 more sources

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