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Jan 19, 2021 at 22:53 vote accept CommunityBot
Jan 19, 2021 at 14:55 answer added Jérémy Blanc timeline score: 6
Jan 19, 2021 at 14:20 history edited user39380 CC BY-SA 4.0
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Jan 19, 2021 at 14:14 history edited user39380 CC BY-SA 4.0
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Jan 19, 2021 at 14:01 comment added user39380 @WillSawin Thanks for clarifying, I am wondering if for any $x$ where $f$ is not defined, the exceptional locus $\Gamma|_x$ contains a component of low degree?
Jan 19, 2021 at 14:00 comment added Will Sawin You are assuming that $x$ is in the exceptional locus, so that $\Gamma |_x$ is not just a single point? Or are you asking for there to be some $x$ such that $\Gamma|_x$ contains a low-degree rational curve?
Jan 19, 2021 at 12:24 history edited user39380 CC BY-SA 4.0
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Jan 19, 2021 at 9:00 history asked user39380 CC BY-SA 4.0