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arXiv 1206.4158math.AP
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一类复Ginzburg-Landau方程解的时间爆破

Finite-time blowup for a complex Ginzburg-Landau equation

Thierry Cazenave, Flávio Dickstein, Fred B. Weissler

摘要:

证明了复Ginzburg-Landau方程$e^{-iθ} u_t = Δu+ |u|^α u$的负能量解在有限时间爆破,其中α>0且π/2<θ<π/2.对于一个固定的初始值$u(0)$,我们得到的爆破时间$T_{max}^θ$的估计为$θ\to \pm π/2 $。结果表明,在极限非线性薛定谔方程的解在有限时间内爆破(分别为全局解)的情况下,$T_{max}^θ$保持有界(分别为无穷大),如同$θ\to \pm π/2 $。

英文摘要:

We prove that negative energy solutions of the complex Ginzburg-Landau equation $e^{-iθ} u_t = Δu+ |u|^α u$ blow up in finite time, where α>0 and π/2<θ<π/2. For a fixed initial value $u(0)$, we obtain estimates of the blow-up time $T_{max}^θ$ as $θ\to \pm π/2 $. It turns out that $T_{max}^θ$ stays bounded (respectively, goes to infinity) as $θ\to \pm π/2 $ in the case where the solution of the limiting nonlinear Schrödinger equation blows up in finite time (respectively, is global).

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