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Jun 30, 2021 at 16:52 vote accept Leo Moos
Jun 30, 2021 at 16:50 comment added Connor Mooney Sure, thank you
Jun 30, 2021 at 16:49 answer added Connor Mooney timeline score: 4
Jun 30, 2021 at 16:29 comment added Leo Moos @ConnorMooney Thanks! Would you like to post this as answer?
Jun 30, 2021 at 15:45 comment added Connor Mooney $U = 2x^2-y^2$ and $u = x^2-2y^2$ solve constant-coefficient elliptic equations, but $U-u = x^2+y^2$ has an interior minimum and thus cannot solve an elliptic equation.
Jun 30, 2021 at 1:13 history undeleted Leo Moos
Jun 30, 2021 at 1:00 history deleted Leo Moos via Vote
Jun 29, 2021 at 22:38 history edited Leo Moos CC BY-SA 4.0
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Jun 29, 2021 at 22:26 history asked Leo Moos CC BY-SA 4.0