eng Science and Education Publishing International Journal of Partial Differential Equations and Applications ISSN Pending 2014-02-10 2 1 13 22 10.12691/ijpdea-2-1-3 IJPDEA2014213 article The Wave Equation with Dynamic Wentzell Boundary Condition in Polygonal and Polyhedral Domains: Observation and Exact Controllability Tawfik Masrour tawfik.masrour13@gmail.com 1 Research Laboratory (M2.I), Mathematical Modeling for Analysis and Decision Making Research team (M2APD), Moulay Ismail University ENSAM, Meknes, Morocco We study in this article the boundary observability and the exact controllability for a problem of transmission. The system is governed by the wave equation with Wentzell dynamic artificial condition on the boundary. The geometrical domains considered are polyhedrons or polygons. http://pubs.sciepub.com/ijpdea/2/1/3/ijpdea-2-1-3.pdf wave equationWentzell boundary conditionWentsellVentcelpolygonal domainspolyhedral domainsobservationexact controllability