Global existence of the scalar field in de Sitter spacetime

Global existence of the scalar field in de Sitter spacetime
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DOI:
10.1016/j.jmaa.2012.06.020
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发表时间:
2012-12
影响因子:
1.3
通讯作者:
K. Yagdjian
K. Yagdjian
中科院分区:
数学3区
文献类型:
--
作者:
K. Yagdjian

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在本文中,我们证明了德西特时空中半线性克莱因-戈登方程柯西问题小数据解的全局存在性。与闵可夫斯基时空中的同一问题不同,只要场的物理质量在某个有界区间之外,我们对非线性的阶数和非线性项的结构没有限制。
In this article we prove the global existence of the small data solutions of the Cauchy problem for the semilinear Klein–Gordon equation in the de Sitter spacetime. Unlike the same problem in the Minkowski spacetime, we have no restriction on the order of nonlinearity and structure of the nonlinear term, provided that a physical mass of the field is outside of some bounded interval.