The Ornstein-Uhlenbeck semigroup in exterior domains
The Ornstein-Uhlenbeck semigroup in exterior domains
复制标题
外部域中的 Ornstein-Uhlenbeck 半群
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
I. Wood
中科院分区:
文献类型:
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作者:
M. Geissert;Horst Heck;Matthias Hieber;I. Wood
Abstract.Let Ω be an exterior domain in
$$mathbb{R}^n .$$ It is shown that Ornstein-Uhlenbeck operators L generate C0-semigroups on Lp(Ω) for p ∈ (1, ∞) provided ∂Ω is smooth. The method presented also allows to determine the domain D(L) of L and to prove Lp − Lq smoothing properties of etL. If ∂Ω is only Lipschitz, results of this type are shown to be true for p close to 2.