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刊物类别:Mathematics and Statistics
刊物主题:Mathematics Mathematics
出版者:Springer Berlin / Heidelberg
ISSN:1432-1807
文摘
We consider systems of semilinear wave equations in three space dimensions with quadratic nonlinear terms not satisfying the null condition. We prove small data global existence of the classical solution under a new structural condition related to the weak null condition. For two-component systems satisfying this condition, we also observe a new kind of asymptotic behavior: Only one component is dissipated and the other one behaves like a non-trivial free solution in the large time.