$\mathbb C[t][W]/(W^2-h_\alpha)$ embeds onto the integral closure of $\mathbb C[t]$; its maximal ideals are the points

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$\mathbb C[t][W]/(W^2-h_\alpha)$ embeds onto the integral closure of $\mathbb C[t]$; its maximal ideals are the points · Prove2Me