Results 81 to 90 of about 12,491,734 (263)

Hyperspectral Image Restoration under Complex Multi-Band Noises

open access: yesRemote Sensing, 2018
Hyperspectral images (HSIs) are always corrupted by complicated forms of noise during the acquisition process, such as Gaussian noise, impulse noise, stripes, deadlines and so on.
Zongsheng Yue   +3 more
doaj   +1 more source

Dirichlet forms methods, an application to the propagation of the error due to the Euler scheme [PDF]

open access: yes, 2006
We present recent advances on Dirichlet forms methods either to extend financial models beyond the usual stochastic calculus or to study stochastic models with less classical tools.
Bouleau, Nicolas
core   +5 more sources

Erratum: Dirichlet Forms and Dirichlet Operators for Infinite Particle Systems: Essential Self-adjointness

open access: yes, 2010
We reprove the essential self-adjointness of the Dirichlet operators of Dirchlet forms for infinite particle systems with superstable and sub-exponentially decreasing interactions.Comment: This is an erratum to the work appeared in J. Math. Phys. 39(12),
Albeverio S.   +6 more
core   +1 more source

Permanence of metric fractals

open access: yesElectronic Journal of Differential Equations, 2007
The paper studies energy functionals on quasimetric spaces, defined by quadratic measure-valued Lagrangeans. This general model of medium, known as metric fractals, includes nested fractals and sub-Riemannian manifolds.
Kyril Tintarev
doaj  

Warped Product Pointwise Semi Slant Submanifolds of Sasakian Space Forms and their Applications

open access: yesAdvances in Mathematical Physics, 2020
In this study, we attain some existence characterizations for warped product pointwise semi slant submanifolds in the setting of Sasakian space forms. Moreover, we investigate the estimation for the squared norm of the second fundamental form and further
Nadia Alluhaibi, Meraj Ali Khan
doaj   +1 more source

Time-reversal and elliptic boundary value problems

open access: yes, 2008
In this paper, we prove that there exists a unique, bounded continuous weak solution to the Dirichlet boundary value problem for a general class of second-order elliptic operators with singular coefficients, which does not necessarily have the maximum ...
Chen, Zhen-Qing, Zhang, Tusheng
core   +2 more sources

Oscillation estimates relative to p-homogeneous forms and Kato measures data

open access: yesLe Matematiche, 2006
We state pointwise estimate for the positive subsolutions associated to a p-homogeneous form and nonnegative Radon measures data. As a by-product we establish an oscillation’s estimate for the solutions relative to Kato measures data.
Marco Biroli, Silvana Marchi
doaj  

Existence of Random Attractors for a p-Laplacian-Type Equation with Additive Noise

open access: yesAbstract and Applied Analysis, 2011
We first establish the existence and uniqueness of a solution for a stochastic p-Laplacian-type equation with additive white noise and show that the unique solution generates a stochastic dynamical system. By using the Dirichlet forms of Laplacian and an
Wenqiang Zhao, Yangrong Li
doaj   +1 more source

Smooth perturbations of regular Dirichlet forms [PDF]

open access: yesProceedings of the American Mathematical Society, 1992
Given a regular Dirichlet form h \mathfrak {h} , we prove that a measure μ \mu is smooth iff the domain of h + μ \mathfrak {h} + \mu is dense in the domain of h \mathfrak {h} with respect to the form norm.
openaire   +2 more sources

Hardy's Inequality for Dirichlet Forms

open access: yesJournal of Mathematical Analysis and Applications, 2000
The aim of the paper is to give necessary and sufficient conditions for the validity of an abstract form of Hardy's \(L^2\) inequality in which the Dirichlet integral is replaced by the Dirichlet form of a general symmetric Markov process. The case of equality in a given inequality is described. The general result is illustrated with examples.
openaire   +2 more sources

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