Título inglés |
Boundary sentinels in cylindrical domains. |
Título español |
Centinelas de contorno en dominios cilíndricos. |
Autor/es |
Saint Jean Paulin, J. ; Vanninathan, M. |
Organización |
Dep. Math. Univ. Metz, Metz, Francia;TIFR Cent., Bangalore, India |
Revista |
1139-1138 |
Publicación |
2001, 14 (1): 271-309, 8 Ref. |
Tipo de documento |
articulo |
Idioma |
Inglés |
Resumen inglés |
We study a model describing vibrations of a cylindrical domain with thickness e > 0. A characteristic of this model is that it contains pollution terms in the boundary data and missing terms in the initial data. The method of sentinels'' of J. L. Lions [7] is followed to construct a sentinel using the observed vibrations on the boundary. Such a sentinel, by construction, provides information on pollution terms independent of missing terms. This requires resolution of initial-boundary value problems with non-zero boundary data of mixed type and an exact controllability problem. Further, we characterize the so called stealthy pollution terms present in the model. |
Clasificación UNESCO |
120220 ; 120702 |
Palabras clave español |
Sistemas de control ; Ecuaciones diferenciales en derivadas parciales ; Condiciones de contorno ; Problema de Dirichlet ; Ondas ; Cilindros ; Vibraciones |
Código MathReviews |
MR1851731 |
Código Z-Math |
Zbl 1058.93010 |
Acceso al artículo completo |