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Timeline for Contractivity of Neumann Laplacian

Current License: CC BY-SA 4.0

9 events
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Nov 8, 2023 at 15:44 history edited YCor CC BY-SA 4.0
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Jan 13, 2022 at 14:21 vote accept Bogdan
Aug 22, 2021 at 13:38 answer added Jochen Glueck timeline score: 8
Aug 19, 2021 at 14:11 comment added Bogdan Does it happen to know some place where I can find a proof of that fact? Thanks a lot!
Aug 19, 2021 at 13:42 comment added Bogdan But when $p=q=+\infty$ then we can assume it on $(0,\infty)$, right?
Aug 19, 2021 at 13:39 comment added Bogdan Now I understand. So we can assume it on intervals of the type $(0,T]$ not just on $(0,1]$. There is nothing special with 1 then. Thanks a lot!
Aug 19, 2021 at 13:12 comment added Giorgio Metafune Since $S(t)1=1$ ultracontractivity holds only in bounded intervals in the form written above.
Aug 19, 2021 at 13:05 comment added Michael Renardy Consider what happens for $\phi=1$.
Aug 19, 2021 at 11:32 history asked Bogdan CC BY-SA 4.0