【摘要】 本文讨论一类多滞量抛物型时滞偏微分方程解的振动性质 ,获得了其一切解振动的充要条件及一些充分条件 .更多还原

【Abstract】 In this paper,oscillatory properties of solutions of certain parabolic partial differential equations are investigated,a series of necessary and sufficient conditions for oscillations of the equations are established. The results fully indicate that the oscillations are caused by delay. This reveals the essential differences between the equations and those equations without delay.更多还原