Results 41 to 50 of about 27,119 (279)

Convex Regularization of Multi-Channel Images Based on Variants of the TV-Model

open access: yes, 2017
We discuss existence and regularity results for multi-channel images in the setting of isotropic and anisotropic variants of the TV ...
Fuchs, Martin   +3 more
core   +1 more source

The BEM with graded meshes for the electric field integral equation on polyhedral surfaces [PDF]

open access: yes, 2015
We consider the variational formulation of the electric field integral equation on a Lipschitz polyhedral surface $\Gamma$. We study the Galerkin boundary element discretisations based on the lowest-order Raviart-Thomas surface elements on a sequence of ...
Bespalov, Alex, Nicaise, Serge
core   +4 more sources

Fuzzy Superpixel Segmentation with Anisotropic Total Variation Regularization

open access: yesMathematics
This paper presents a superpixel segmentation algorithm that integrates anisotropic total variation regularization within a fuzzy clustering framework.
Tsz Ching Ng   +4 more
doaj   +1 more source

Isomorphism theorems for some parabolic initial-boundary value problems in Hörmander spaces

open access: yesOpen Mathematics, 2017
In Hörmander inner product spaces, we investigate initial-boundary value problems for an arbitrary second order parabolic partial differential equation and the Dirichlet or a general first-order boundary conditions.
Los Valerii, Murach Aleksandr
doaj   +1 more source

Resolution of a high-order parabolic equation in conical time-dependent domains of R3

open access: yesArab Journal of Mathematical Sciences, 2016
New results on the existence, uniqueness and maximal regularity of a solution are given for a two-space dimensional high-order parabolic equation set in conical time-dependent domains.
Arezki Kheloufi   +1 more
doaj   +1 more source

H\"older regularity for Maxwell's equations under minimal assumptions on the coefficients

open access: yes, 2018
We prove global H\"older regularity for the solutions to the time-harmonic anisotropic Maxwell's equations, under the assumptions of H\"older continuous coefficients. The regularity hypotheses on the coefficients are minimal. The same estimates hold also
Alberti, Giovanni S.
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Embeddings of anisotropic Sobolev spaces into spaces of anisotropic Hölder-continuous functions

open access: yesDemonstratio Mathematica
We introduce a novel framework for embedding anisotropic variable exponent Sobolev spaces into spaces of anisotropic variable exponent Hölder-continuous functions within rectangular domains.
Eddine Nabil Chems, Repovš Dušan D.
doaj   +1 more source

Positive solutions for parametric (p(z),q(z))-equations

open access: yesOpen Mathematics, 2020
We consider a parametric elliptic equation driven by the anisotropic (p,q)(p,q)-Laplacian. The reaction is superlinear. We prove a “bifurcation-type” theorem describing the change in the set of positive solutions as the parameter λ\lambda moves in ℝ+=(0,
Gasiński Leszek   +2 more
doaj   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

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