Abstract:
In the initial energy
E(0) \in (0,E_1), by the energy method the Kirchhoff-type equations with nonlinear logarithmic source term is studied blow-up of the situation for:
u_tt - M(t)\Delta u + u + \left( g*\Delta u \right)(t) + \left| u_t \right|^ru_t - \Delta u_t + \left| u \right|^2u = u\ln \left| u \right|^k. It is proved that if
q > 1,0 < r < 2, the solution of the equation blow-up at a finite time point; if
q \geqslant 1,r = 0, the solution of the equation blow-up at an infinite time point; in
q,r other cases, the equation exists global solutions, and the energy function has exponential decay.