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中文摘要：
本文考虑一维空间中四阶抛物型方程Cauchy问题{u（x,0）=u0（x）,ut=эx^2u＋эx^4u=эxf（u），x∈R,x∈R,t〉0,的整体解u=U（x，t）的大时间渐近行为和时间衰减速率，其中f（u）∈C^1（R）,｜f（u）｜≤C｜u｜^q,q〉2^-5.
英文摘要：
In this paper, we consider the large time behavior and the time-decay rate of global solutions to the Cauchy problem of fourth order parabolic equation in one dimension space：{u（x,0）=u0（x）,ut=эx^2u＋эx^4u=эxf（u）,x∈R,x∈R,t〉0,with f（u）satisfying f（u）∈C^1（R）,｜f（u）｜≤C｜u｜^q,q〉2^-5.
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