得到具有多个正负系数的时滞抛物型微分方程一切解振动的若干新的充分条件,推广和改进了文献[1](Kreith K,Ladas G.Allowable delays for positive diffusion processes.Hiroshi-ma Math J,1985,15:437-443)中的结果.
Motivated by [3], [4] and [5], we present the kinetic formulation of a nonlinear variational wave equation corresponding to some specific weak solutions . This equation arises from studies in nematic liquid crystals, long wave on a dipole chain and a few other fields.
