A Schrödinger equation with time-oscillating nonlinearity

A Schrödinger equation with time-oscillating nonlinearity
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DOI:
10.1007/s13163-009-0018-7
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发表时间:
2010-07
期刊:
Revista Matemática Complutense
影响因子:
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通讯作者:
T. Cazenave;M. Scialom
T. Cazenave;M. Scialom
中科院分区:
其他
文献类型:
--
作者:
T. Cazenave;M. Scialom

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在本文中,我们考虑ℝN中的非线性薛定谔方程iut+Δu+θ(ωt)|u|αu=0,其中α是H1次临界指数,θ是周期函数。我们证明,对于给定的初始条件 u(t0)=φ∈H1(ℝN),解 u 收敛为 |ω|→∞ 到具有相同初始条件的极限方程 iUt+ΔU+I(θ)|U|αU=0 的解,其中 I(θ) 是 θ 的平均值。我们还表明,如果极限解 U 是全局的,并且具有一定的衰减性质 ast → ∞,则 u 也是全局的,如果 | ω |足够大。
In this paper, we consider the nonlinear Schrödinger equationiut+Δu+θ(ωt)|u|αu=0 in ℝNwhereαis anH1-subcritical exponent andθis a periodic function. We show that, for a given initial conditionu(t0)=φ∈H1(ℝN), the solutionuconverges as |ω|→∞ to the solution of the limiting equationiUt+ΔU+I(θ)|U|αU=0 with the same initial condition, whereI(θ) is the average ofθ. We also show that if the limiting solutionUis global and has a certain decay property ast→∞, thenuis also global if |ω| is sufficiently large.