Existence, blow-up and exponential decay estimates for a nonlinear wave   equation with boundary conditions of two-point type
  This paper is devoted to study a nonlinear wave equation with boundary conditions of two-point type. First, we state two local existence theorems and under suitable conditions, we prove that any weak solutions with negative initial energy will blow up in finite time. Next, we give a sufficient condition to guarantee the global existence and exponential decay of weak solutions. Finally, we present numerical results 
Le Xuan Truong, Le Thi Phuong Ngoc, Alain Pham Ngoc Dinh (MAPMO),   Nguyen Thanh Long (UNS-HCMC)
math.AP