3
$\begingroup$

Does anyone have a reference that explains the technique of doubling of variables as introduced by Kruzkov? It seems to be a necessary tool for contraction estimates when we have weak solutions. However all the papers I have come across merely use this method without giving any explanation of it.

$\endgroup$

1 Answer 1

3
$\begingroup$

This paper by Felix Otto applies the method to quasilinear parabolic equations, and explains the steps in detail.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.