Volume 36, Issue 4
Approximate Controllability of the System Governed by Double Coupled Semilinear Degenerate Parabolic Equations

Chunpeng Wang, Fengdan Xu & Qian Zhou

Commun. Math. Res., 36 (2020), pp. 403-422.

Published online: 2020-11

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  • Abstract

This paper concerns the approximate controllability of the initial-boundary problem of double coupled semilinear degenerate parabolic equations. The equations are degenerate at the boundary, and the control function acts in the interior of the spacial domain and acts only on one equation. We overcome the difficulty of the degeneracy of the equations to show that the problem is approximately controllable in $L^2$ by means of a fixed point theorem and some compact estimates. That is to say, for any initial and desired data in $L^2$, one can find a control function in $L^2$ such that the weak solution to the problem approximately reaches the desired data in $L^2$ at the terminal time.

  • Keywords

Double coupled, degeneracy, approximate controllability.

  • AMS Subject Headings

93B05, 93C20, 35K65

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{CMR-36-403, author = {Wang , Chunpeng and Xu , Fengdan and Zhou , Qian}, title = {Approximate Controllability of the System Governed by Double Coupled Semilinear Degenerate Parabolic Equations}, journal = {Communications in Mathematical Research }, year = {2020}, volume = {36}, number = {4}, pages = {403--422}, abstract = {

This paper concerns the approximate controllability of the initial-boundary problem of double coupled semilinear degenerate parabolic equations. The equations are degenerate at the boundary, and the control function acts in the interior of the spacial domain and acts only on one equation. We overcome the difficulty of the degeneracy of the equations to show that the problem is approximately controllable in $L^2$ by means of a fixed point theorem and some compact estimates. That is to say, for any initial and desired data in $L^2$, one can find a control function in $L^2$ such that the weak solution to the problem approximately reaches the desired data in $L^2$ at the terminal time.

}, issn = {2707-8523}, doi = {https://doi.org/10.4208/cmr.2020-0061}, url = {http://global-sci.org/intro/article_detail/cmr/18360.html} }
TY - JOUR T1 - Approximate Controllability of the System Governed by Double Coupled Semilinear Degenerate Parabolic Equations AU - Wang , Chunpeng AU - Xu , Fengdan AU - Zhou , Qian JO - Communications in Mathematical Research VL - 4 SP - 403 EP - 422 PY - 2020 DA - 2020/11 SN - 36 DO - http://doi.org/10.4208/cmr.2020-0061 UR - https://global-sci.org/intro/article_detail/cmr/18360.html KW - Double coupled, degeneracy, approximate controllability. AB -

This paper concerns the approximate controllability of the initial-boundary problem of double coupled semilinear degenerate parabolic equations. The equations are degenerate at the boundary, and the control function acts in the interior of the spacial domain and acts only on one equation. We overcome the difficulty of the degeneracy of the equations to show that the problem is approximately controllable in $L^2$ by means of a fixed point theorem and some compact estimates. That is to say, for any initial and desired data in $L^2$, one can find a control function in $L^2$ such that the weak solution to the problem approximately reaches the desired data in $L^2$ at the terminal time.

Chunpeng Wang, Fengdan Xu & Qian Zhou. (2020). Approximate Controllability of the System Governed by Double Coupled Semilinear Degenerate Parabolic Equations. Communications in Mathematical Research . 36 (4). 403-422. doi:10.4208/cmr.2020-0061
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