For questions about elliptic differential operators.
A differential operator is said to be elliptic if its principal symbol is invertible.
Questions tagged [elliptic-operators]
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What should $\tilde{f}$ be in this elliptic equation?
I will quote the following passage from Evans' book- pg 315:
Insert $v=(-1)^{|\alpha|}D^{\alpha}\tilde{v}$ into the identity $B[u,v]=(f,v)_{L^2(U)}$. After performing some integrations by parts, we get…
Anju George
- 471