In this Note, we first get the existence and uniqueness of semi-global C-1
solution to the mixed initial-boundary value problem for quasilinear hyperb
olic systems with general nonlinear boundary conditions, and then we establ
ish the corresponding exact boundary controllability, provided that the C-1
norm of the initial and final states is small enough. (C) 2001 Academie de
s sciences/Editions scientifiques et medicales Elsevier SAS.