Invariant measure for a three dimensional nonlinear wave equation
Invariant measure for a three dimensional nonlinear wave equation
复制标题
三维非线性波动方程的不变测度
DOI:
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
N. Tzvetkov
中科院分区:
文献类型:
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作者:
N. Burq;N. Tzvetkov
We study the long time behavior of the subcritical (subcubic) defocussing nonlinear wave equation on the three dimensional ball, for random data of low regularity. We prove that for a large set of radial initial data in $cap_{s<1/2} H^s(B(0,1))$ the equation is (globally in time) well posed and we construct an invariant measure.