Geometrical aspects of exact boundary controllability for the wave equation - a numerical study

M. Asch; G. Lebeau

ESAIM: Control, Optimisation and Calculus of Variations (2010)

  • Volume: 3, page 163-212
  • ISSN: 1292-8119

Abstract

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This essentially numerical study, sets out to investigate various geometrical properties of exact boundary controllability of the wave equation when the control is applied on a part of the boundary. Relationships between the geometry of the domain, the geometry of the controlled boundary, the time needed to control and the energy of the control are dealt with. A new norm of the control and an energetic cost factor are introduced. These quantities enable a detailed appraisal of the numerical solutions obtained and the detection of trapped rays.

How to cite

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Asch, M., and Lebeau, G.. "Geometrical aspects of exact boundary controllability for the wave equation - a numerical study ." ESAIM: Control, Optimisation and Calculus of Variations 3 (2010): 163-212. <http://eudml.org/doc/197292>.

@article{Asch2010,
abstract = { This essentially numerical study, sets out to investigate various geometrical properties of exact boundary controllability of the wave equation when the control is applied on a part of the boundary. Relationships between the geometry of the domain, the geometry of the controlled boundary, the time needed to control and the energy of the control are dealt with. A new norm of the control and an energetic cost factor are introduced. These quantities enable a detailed appraisal of the numerical solutions obtained and the detection of trapped rays. },
author = {Asch, M., Lebeau, G.},
journal = {ESAIM: Control, Optimisation and Calculus of Variations},
keywords = {Exact controllability; geometric optics; wave equation; finite differences. },
language = {eng},
month = {3},
pages = {163-212},
publisher = {EDP Sciences},
title = {Geometrical aspects of exact boundary controllability for the wave equation - a numerical study },
url = {http://eudml.org/doc/197292},
volume = {3},
year = {2010},
}

TY - JOUR
AU - Asch, M.
AU - Lebeau, G.
TI - Geometrical aspects of exact boundary controllability for the wave equation - a numerical study
JO - ESAIM: Control, Optimisation and Calculus of Variations
DA - 2010/3//
PB - EDP Sciences
VL - 3
SP - 163
EP - 212
AB - This essentially numerical study, sets out to investigate various geometrical properties of exact boundary controllability of the wave equation when the control is applied on a part of the boundary. Relationships between the geometry of the domain, the geometry of the controlled boundary, the time needed to control and the energy of the control are dealt with. A new norm of the control and an energetic cost factor are introduced. These quantities enable a detailed appraisal of the numerical solutions obtained and the detection of trapped rays.
LA - eng
KW - Exact controllability; geometric optics; wave equation; finite differences.
UR - http://eudml.org/doc/197292
ER -

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