Figure 2From: A new proof of a theorem of Hubbard and Oberste-Vorth A neighborhood \(\pmb{V=U'\times\mathbb{D}_{r}}\) of \(\pmb{J^{+}\cap\{ |y|< r\}}\) . The Hénon map \(H_{p,a}\) is a small perturbation of the polynomial \(p(z)=z^{2}-1\).Back to article page