Results 21 to 30 of about 139,050 (252)

Strong Maximum Principles for Anisotropic Elliptic and Parabolic Equations [PDF]

open access: yesAdvanced Nonlinear Studies, 2012
Abstract We investigate vanishing properties of nonnegative solutions of anisotropic elliptic and parabolic equations. We describe the optimal vanishing sets, and we establish strong maximum principles.
openaire   +2 more sources

A constrained finite element method satisfying the discrete maximum principle for anisotropic diffusion problems [PDF]

open access: yesJournal of Computational Physics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kuzmin, D.   +2 more
openaire   +2 more sources

Stereotactic Ablative Radiotherapy of Ventricular Tachycardia Using Tracking: Optimized Target Definition Workflow

open access: yesFrontiers in Cardiovascular Medicine, 2022
Background and PurposeStereotactic arrhythmia radioablation (STAR) has been suggested as a promising therapeutic alternative in cases of failed catheter ablation for recurrent ventricular tachycardias in patients with structural heart disease. Cyberknife®
Pavel Dvorak   +6 more
doaj   +1 more source

Positive solutions for nonparametric anisotropic singular solutions [PDF]

open access: yesOpuscula Mathematica
We consider an elliptic equation driven by a nonlinear, nonhomogeneous differential operator with nonstandard growth. The reaction has the combined effects of a singular term and of a "superlinear" perturbation.
Nikolaos S. Papageorgiou   +2 more
doaj   +1 more source

Entropy of Anisotropic Universe and Fractional Branes [PDF]

open access: yes, 2007
We obtain the entropy of a homogeneous anisotropic universe applicable, by assumption, to the fractional branes in the universe in the model of Chowdhury and Mathur. The entropy for the 3 or 4 charge fractional branes thus obtained is not of the expected
A. Karch   +22 more
core   +3 more sources

Searching for a preferred direction with Union2.1 data [PDF]

open access: yes, 2013
A cosmological preferred direction was reported from the type Ia supernovae (SNe Ia) data in recent years. We use the Union2.1 data to give a simple classification of such studies for the first time.
Chu, Zhe, Wang, F. Y., Yang, Xiaofeng
core   +1 more source

Minimal Stencils for Discretizations of Anisotropic PDEs Preserving Causality or the Maximum Principle [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2016
Summary: We consider discretizations of anisotropic diffusion and of the anisotropic eikonal equation, on two-dimensional cartesian grids, which preserve their structural properties: the maximum principle for diffusion, and causality for the eikonal equation.
openaire   +2 more sources

A Biomimetic Fish Fin-Like Robot Based on Textile Reinforced Silicone

open access: yesMicromachines, 2020
The concept of merging pre-processed textile materials with tailored mechanical properties into soft matrices is so far rarely used in the field of soft robotics.
Sascha Pfeil   +6 more
doaj   +1 more source

Anisotropic Stars in General Relativity [PDF]

open access: yes, 2001
We present a class of exact solutions of Einstein's gravitational field equations describing spherically symmetric and static anisotropic stellar type configurations. The solutions are obtained by assuming a particular form of the anisotropy factor.
Harko, T., Mak, M. K.
core   +5 more sources

An overdetermined problem for the anisotropic capacity [PDF]

open access: yes, 2016
We consider an overdetermined problem for the Finsler Laplacian in the exterior of a convex domain in $\mathbb{R}^N$, establishing a symmetry result for the anisotropic capacitary potential. Our result extends the one of W. Reichel [Arch.
Bianchini, Chiara   +2 more
core   +2 more sources

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