Timeline for Linear extension operators for smooth functions: from compact sets to compact sets
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Apr 22, 2016 at 1:10 | vote | accept | David Roberts♦ | ||
| Mar 1, 2016 at 7:19 | comment | added | Jochen Wengenroth | @DeaneYang Extensions from intervals were done by Mityagin in 1961. In 1964 Seeley constructed extension operators for half spaces. Although he did not write it explicitly, this covers more or less the case of smooth boundaries. Stein's result for Lipschitz boundaries is from 1970. | |
| Feb 29, 2016 at 20:49 | comment | added | David Roberts♦ | I am hoping my case is the one where the smaller set is the closure of its interior, and these closed sets arise from rather flexible geometric considerations, so they can be tweaked a little to avoid cusps. | |
| Feb 29, 2016 at 15:15 | comment | added | Deane Yang | I've always wondered whether Stein was the first to do this for a domain with smooth boundary or whether his Lipschitz boundary theorem was the first to do this case. | |
| Feb 29, 2016 at 12:54 | history | edited | Yemon Choi | CC BY-SA 3.0 |
the verbose reformatting (by robot?) of the citations seemed unnecessary, but it 'twere done, 'twere best done without the glitches
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| Feb 29, 2016 at 11:16 | history | edited | Kim Morrison | CC BY-SA 3.0 |
added 552 characters in body
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| Feb 29, 2016 at 8:29 | history | answered | Jochen Wengenroth | CC BY-SA 3.0 |