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Results tagged with elliptic-pde
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user 91098
Questions about partial differential equations of elliptic type. Often used in combination with the top-level tag ap.analysis-of-pdes.
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Mapping properties of the Schrödinger semigroup
Partial answer: Let $p,q\in [1,\infty)$. In general one cannot expect this to be bounded for any combination of $p\neq q$. For a suitable choice of $c>0$ we have that the $L^2$ spectrum of $A=-\Delta+ …
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