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arXiv 1602.04172math.AP
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具有平方反比势的薛定谔算子的热核

The heat kernel of a Schrödinger operator with inverse square potential

Kazuhiro Ishige, Yoshitsugu Kabeya, El Maati Ouhabaz

摘要:

我们考虑具有径向势V的Schr{<$}dinger算子H = -- $Δ$ + V(|x|),它在0处有奇点,在无穷远处有二次衰减.首先,我们研究了H的正调和函数的结构,并给出了它们的精确性质。其次,在相当一般的条件下,我们证明了0型\textless{} p(x,y,t)$\le$ C t --N2 U(min{ |x|,$\sqrt$ t})U(min {|y|,$\sqrt$ t})U($\sqrt$ t)2 exp --的相应热核p(x,y,t)的一个上界.| x-y| 2 Ct对于所有x,y $\in$ R N和t \textgreater{} 0,其中U是H的正调和函数。第三,如果U2是RN上的A2权,则我们证明了一个类似类型的下界。

英文摘要:

We consider the Schr{ö}dinger operator H = --$Δ$ + V (|x|) with radial potential V which may have singularity at 0 and a quadratic decay at infinity. First, we study the structure of positive harmonic functions of H and give their precise behavior. Second, under quite general conditions we prove an upper bound for the correspond heat kernel p(x, y, t) of the type 0 \textless{} p(x, y, t) $\le$ C t -- N 2 U (min{|x|, $\sqrt$ t})U (min{|y|, $\sqrt$ t}) U ($\sqrt$ t) 2 exp -- |x -- y| 2 Ct for all x, y $\in$ R N and t \textgreater{} 0, where U is a positive harmonic function of H. Third, if U 2 is an A 2 weight on R N , then we prove a lower bound of a similar type.

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。

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