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arXiv 2602.18035math.AP
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非局部本征值问题与叠加算子

Nonlocal eigenvalue problems and superposition operators

The University of Western Australia(西澳大学);Universidad de Granada(格拉纳达大学)

Serena Dipierro, Edoardo Proietti Lippi, Caterina Sportelli, Enrico Valdinoci

AI总结:

本文研究了混合局部和非局部算子的本征值问题,揭示了不连通域中本征函数的符号变化特性及第一本征值的大小关系。

摘要:

我们研究了具有右侧方程中低阶项的混合局部和非局部算子的谱理论。此类问题受混合阶数的叠加算子分析的动机,以及相对于经典椭圆理论的“错误符号”低阶项的分析所驱动。我们的结果包括:-当特征方程右侧的“局部化”时,收敛到经典情况,恢复极限下的本征函数的简单性和符号确定性;-对不连通域的详细分析,显示不同于经典情况,任何与第一本征值相关的本征函数必须改变符号,并且不连通域的联合的第一本征值严格小于其各个组成部分的第一本征值;-在不连通域中第一本征值可能是简单或非简单的示例;-支撑这些结果的正则性理论。

英文摘要:

We study the spectral theory of mixed local and nonlocal operators with lower-order terms in the right-hand side of the equation. This kind of problems is motivated by the analysis of superposition operators of mixed order and with the "wrong sign" of the lower-order terms with respect to the classical elliptic theory. Our results include: -convergence to classical cases when the right-hand side of the eigenvalye equations "localizes", recovering the simplicity and sign-definiteness of eigenfunctions in the limit; -a detailed analysis of disconnected domains, showing that, unlike the classical case, any eigenfunction associated with the first eigenvalue must change sign, and that the first eigenvalue of a union of disconnected domains is strictly smaller than that of its individual components; -examples in which the first eigenvalue is either simple or non-simple in disconnected domains; -a regularity theory that underpins these results.

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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