Results 1 to 10 of about 34 (22)

Reachable states for the distributed control of the heat equation

open access: yesComptes rendus. Mathematique, 2022
We are concerned with the determination of the reachable states for the distributed control of the heat equation on an interval. We consider either periodic boundary conditions or homogeneous Dirichlet boundary conditions.
Mo Chen, L. Rosier
semanticscholar   +1 more source

Properties of generalized degenerate parabolic systems

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we consider the parabolic system (ui)t=∇⋅(mUm−1A(∇ui,ui,x,t)+ℬ(ui,x,t)),(1≤i≤k){({u}^{i})}_{t}=\nabla \cdot (m{U}^{m-1}{\mathcal{A}}(\nabla {u}^{i},{u}^{i},x,t)+{\mathcal{ {\mathcal B} }}({u}^{i},x,t)),\hspace{1.0em}(1\le i\le k) in the ...
Kim Sunghoon, Lee Ki-Ahm
doaj   +1 more source

Higher integrability for anisotropic parabolic systems of p-Laplace type

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we consider anisotropic parabolic systems of pp-Laplace type. The model case is the parabolic pi{p}_{i}-Laplace system ut−∑i=1n∂∂xi(∣Diu∣pi−2Diu)=0{u}_{t}-\mathop{\sum }\limits_{i=1}^{n}\frac{\partial }{\partial {x}_{i}}({| {D}_{i}u| }^{{
Mons Leon
doaj   +1 more source

Carleman estimate for a one-dimensional system of m coupled parabolic PDEs with BV diffusion coefficients

open access: yesBoundary Value Problems, 2014
This paper is devoted to deriving global Carleman estimate for a one-dimensional linear coupled parabolic system of m equations with bounded variations (BV) diffusion coefficients.
Hichem Ramoul
semanticscholar   +2 more sources

Some properties of Green's functions of Shilov-type parabolic systems

open access: yesMiskolc Mathematical Notes, 2019
For Shilov-type parabolic systems with nonnegative genus and coefficients of bounded smoothness, the properties of differentiability of Green’s function with respect to spatial variables are studied.
V. Litovchenko, G. Unguryan
semanticscholar   +1 more source

Maximum principles for parabolic systems coupled in both first‐order and zero‐order terms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 4, Page 813-816, 1994., 1993
Some generalized maximum principles are established for linear second‐order parabolic systems in which both first‐order and zero‐order terms are coupled.
Chiping Zhou
wiley   +1 more source

Unstable periodic wave solutions of Nerve Axion diffusion equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 10, Issue 4, Page 787-796, 1987., 1987
Unstable periodic solutions of systems of parabolic equations are studied. Special attention is given to the existence and stability of solutions.
Rina Ling
wiley   +1 more source

PHENOTYPIC DEFORMATION: THE ROLE OF ALLOMETRY AND THE GOLDEN RATIO

open access: yes, 2016
Following the Antonelli/Rutz Finsler Gate method, the concept of Allometric Strain is introduced to model plastic deformation of phenotypes in mammalian genomes.
P. Antonelli, C. Leandro, S. Rutz
semanticscholar   +1 more source

Crossover collision of scroll wave filaments

open access: yesDocumenta Mathematica, 2000
Scroll waves are three-dimensional stacks of rotating spiral waves, with spiral tips aligned along filament curves. Such spatiotemporal patterns arise, for example, in reaction diffusion systems of excitable media type.
B. Fiedler, R. Mantel
semanticscholar   +1 more source

STOCHASTIC CANALIZATION OF PHENOTYPIC DEFORMATIONS DURING ONTOGENESIS

open access: yes, 2016
This article presents a new application of the Stochastic Theory of Volterra-Hamilton Systems of Finsler class to growth and ontogeny and particularly to the study of noise effects on the deterministic model equations for interaction of muscle and ...
P. Antonelli, C. Leandro, S. Rutz
semanticscholar   +1 more source

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