M. Kirane et al., NONEXISTENCE OF GLOBAL-SOLUTIONS OF SOME QUASI-LINEAR HYPERBOLIC-EQUATIONS WITH DYNAMIC BOUNDARY-CONDITIONS, Mathematische Nachrichten, 176, 1995, pp. 139-147
In this paper the non-existence of global solutions of two fourth-orde
r hyperbolic equations with dynamic boundary conditions is considered.
The method of proof makes use of the generalized convexity method due
to LADYZHENSKAYA and KALANTAROV [4].