Let $\Delta:=\partial_z\partial_{\overline {z}} $ be the Laplacian operator. I look for a particular non trivial solution $u$ of $$\Delta u=\frac{a}{1-|z|^2}u$$ where $u\in C^2(\mathbb{D})$ and $a\in\mathbb{C} $.
Linear elleptic equation
Samir
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