Take the 2-minute tour ×
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.

How can we prove that if $\int_U{f}=0$,then the homogeneous Neumann problem $\Delta u=f$on U,and $\frac{\partial u}{\partial n}=0$ on $\partial U$ has a weak solution in $H^1(U)$?

share|improve this question

1 Answer 1

up vote 0 down vote accepted

Dear Daniel,

I think that mathoverflow is not the correct forum for this question unfortunately, since it is a typical homework problem.

You could try asking it at, for example, math.stackexchange or artofproblemsolving. However, homework problems copied verbatim without any other text can be frowned upon. Therefor I recommend that you add what you have tried and where you get stuck.

share|improve this answer
Thanks for your suggestion. I know the result. –  Daniel May 19 '13 at 12:00

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

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