1-Extension of Sobolev functions over the real plane












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Let $Omega$ be the region ${(x,y) in mathbb{R}^2 | y >x^2}$. I would like to determine whether there exists a continuous extension map $$E:W^{1,p}(Omega) to W^{1,p}(mathbb{R}^2) .$$



Here we do not have the standard hypothesis to get such an extension like for example having $partialOmega$ compact,so I was trying to prove that it is false by invalidating some of the consequences this extension would imply, but I was not able to get any further










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    $begingroup$


    Let $Omega$ be the region ${(x,y) in mathbb{R}^2 | y >x^2}$. I would like to determine whether there exists a continuous extension map $$E:W^{1,p}(Omega) to W^{1,p}(mathbb{R}^2) .$$



    Here we do not have the standard hypothesis to get such an extension like for example having $partialOmega$ compact,so I was trying to prove that it is false by invalidating some of the consequences this extension would imply, but I was not able to get any further










    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      Let $Omega$ be the region ${(x,y) in mathbb{R}^2 | y >x^2}$. I would like to determine whether there exists a continuous extension map $$E:W^{1,p}(Omega) to W^{1,p}(mathbb{R}^2) .$$



      Here we do not have the standard hypothesis to get such an extension like for example having $partialOmega$ compact,so I was trying to prove that it is false by invalidating some of the consequences this extension would imply, but I was not able to get any further










      share|cite|improve this question









      $endgroup$




      Let $Omega$ be the region ${(x,y) in mathbb{R}^2 | y >x^2}$. I would like to determine whether there exists a continuous extension map $$E:W^{1,p}(Omega) to W^{1,p}(mathbb{R}^2) .$$



      Here we do not have the standard hypothesis to get such an extension like for example having $partialOmega$ compact,so I was trying to prove that it is false by invalidating some of the consequences this extension would imply, but I was not able to get any further







      functional-analysis sobolev-spaces






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      asked Dec 29 '18 at 13:02









      Tommaso ScognamiglioTommaso Scognamiglio

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