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C. Simon
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Is a $G$-invariant character $\theta$ of $H$ extendible to $G$?

Let $H\vartriangleleft G$, and $\theta$ be an irreducible $\mathbb{C}$-character of $H$. Suppose $\theta$ is invariant in $G$ and $\theta(1)=9$.

Question: Is $\theta$ extendible to $G$?

C. Simon
  • 577
  • 2
  • 7