显而易见
发表于 2025-3-28 15:24:46
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苦笑
发表于 2025-3-28 19:38:57
https://doi.org/10.1007/978-3-319-05260-1Applied Health Services Management Statistics; Excel 2010 Health Services Management Statistics; Excel
AWL
发表于 2025-3-29 01:10:00
Divergence-type Operators: Spectral Theory and Spacetime Estimates,cients . are assumed to be bounded and . is assumed to be uniformly elliptic and to coincide with −∆ outside of a ball. A Limiting Absorption Principle (LAP) is proved in the framework of weighted Sobolev spaces. It is then used for (i) A general eigenfunction expansion theorem and (ii) Global space