Parabolic Anderson model on Heisenberg groups: The Itô setting
Parabolic Anderson model on Heisenberg groups: The Itô setting
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海森堡群的抛物线安德森模型:Ità 设置
DOI:
10.1016/j.jfa.2023.109920
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发表时间:
2023
影响因子:
1.7
通讯作者:
Wang, Jing
中科院分区:
文献类型:
--
作者:
Baudoin, Fabrice;Ouyang, Cheng;Tindel, Samy;Wang, Jing
In this note we focus our attention on a stochastic heat equation defined on the Heisenberg group H n of order n. This equation is written as∂ t u= 1 2 Δ u+ u W˙ α, where Δ is the hypoelliptic Laplacian on H n and {W˙ α; α> 0} is a family of Gaussian space-time noises which are white in time and have a covariance structure generated by (− Δ)− α in space. Our aim is threefold:(i) Give a proper description of the noise W α;(ii) Prove that one can solve the stochastic heat equation in the Itô sense as soon as α> n 2;(iii) Give some basic moment estimates for the solution u (t, x).