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Jan 12, 2016 at 9:35 history edited Matthias Ludewig CC BY-SA 3.0
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Jan 12, 2016 at 9:35 vote accept Matthias Ludewig
Jan 11, 2016 at 19:29 answer added ifw timeline score: 1
Jan 11, 2016 at 19:09 comment added Matthias Ludewig Honestly, I thought that this would be just true and quite elementary to show, even though I couldn't come up with a solution myself...
Jan 11, 2016 at 19:08 history edited Matthias Ludewig CC BY-SA 3.0
added 2 characters in body
Jan 11, 2016 at 15:42 comment added Michael Renardy It seems that an answer to this problem requires, in particular, knowledge of all eigenvalues of Sturm-Liouville problems. Life would be nice if that were simple, but ... What kind of answer do you expect?
S Jan 11, 2016 at 15:18 history suggested ifw CC BY-SA 3.0
Fixed some typos. Added the \quad, because an edit must be at least 6 characters.
Jan 11, 2016 at 15:07 review Suggested edits
S Jan 11, 2016 at 15:18
Jan 9, 2016 at 17:21 history asked Matthias Ludewig CC BY-SA 3.0