arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.01753math.APmath.OCmath.SP
收藏

Kolmogorov型方程能观性的临界时间

Critical time for the observability of Kolmogorov-type equations

Jérémi Dardé, Julien Royer

摘要:

研究了一类具有二次退化的二维Kolmogorov型方程的能观性。我们给出了临界时间的上界。这些界限在对称设置中重合,在这些情况下给出尖锐的结果。证明是基于Carleman估计和一个家庭的非自伴薛定谔算子的谱性质,特别是本地化的第一个本征值和Agmon型估计相应的本征函数。

英文摘要:

This paper is devoted to the observability of a class of two-dimensional Kolmogorov-type equations presenting a quadratic degeneracy. We give lower and upper bounds for the critical time. These bounds coincide in symmetric settings, giving a sharp result in these cases. The proof is based on Carleman estimates and on the spectral properties of a family of non-selfadjoint Schrödinger operators, in particular the localization of the first eigenvalue and Agmon type estimates for the corresponding eigenfunctions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑