椭圆型PDE的本征函数的衰减
Decay of eigenfunctions of elliptic PDE's
摘要:
研究了$\R^d$上自伴高阶椭圆算子本征函数的指数衰减性。我们表明,可能的临界衰变率确定代数。此外,我们还证明了不存在超指数衰减的本征函数和一个精确的指数上界。
英文摘要:
We study exponential decay of eigenfunctions of self-adjoint higher order elliptic operators on $\R^d$. We show that the possible critical decay rates are determined algebraically. In addition we show absence of super-exponentially decaying eigenfunctions and a refined exponential upper bound.
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