Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Differential Equatio...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Differential Equations
Article . 2004 . Peer-reviewed
License: Springer Nature TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Differential Equations
Article . 2004 . Peer-reviewed
License: Springer Nature TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 2004
Data sources: zbMATH Open
versions View all 3 versions
addClaim

Relative stabilization of solutions of a degenerating parabolic equation with nonlinear lower-order terms

Authors: Khramtsov, O. V.;

Relative stabilization of solutions of a degenerating parabolic equation with nonlinear lower-order terms

Abstract

The paper studies the Cauchy problem for a nonlinear degenerate parabolic equation. The equation with state \(u(x, t)\), \(x\in \mathbb R\), \(t> 0\) is described by \[ u_t= (u^\alpha)_{xx}+ a|u_x|^\lambda+ cv(x,t),\quad u(x,0)= f(x), \] where both \(u\) and \(f\) are nonnegative, and the parameters are such that \(ac\neq 0\), \(1<\alpha< 2\), and \(0<\lambda< 2/(3- \alpha)\). The stabilization problem is to find a suitable input \(v\) as a function of \(u\) (viewed as a kind of feedback control) such that \(\lim_{t\to\infty}u(x,t)= 0\) for all \(x\in \mathbb R\). A set of nonnegative functions \(f\) in \(C(\mathbb R)\), say \(G\), is introduced, such that \(f\) is bounded from above by \(\text{const}|x|^{\nu_0}\), \(\nu_0= (2-\lambda)/(\alpha- \lambda)\) when \(|x|\to\infty\), where the constant is determined by the above parameters and the induced pseudocharacteristic equation. The principal result is stated as follows: By setting \(v(x, t)= ru(x, t)^\beta\) with \(|r|\leq 1\), \(rc< 0\), and \(\beta= \lambda(2 -\alpha)/(2-\lambda)\), the stabilization is achieved as long as the initial state \(f\) belongs to the set \(G\).

Keywords

Asymptotic stability in control theory, degenerate parabolic equations, Stabilization of systems by feedback, Initial value problems for second-order parabolic equations, Degenerate parabolic equations, one space dimension, relative stabilization, pseudocharacteristic equation

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!