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Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology.

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What is the relation between KC and height of rational number?

After thinking about it for a bit, the relationship is as follows for a rational $q$, $$K(\text{height}\,q) \leq^+ K(q) \leq^+ 2\,\text{height}\,q.$$ This isn't really a surprising or useful relations …
Jason Rute's user avatar
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17 votes
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The topos for forcing in computability theory

My understanding is that forcing (such as Cohen forcing) can be described via a topos. For example this nlab article on forcing describes forcing as a "the topos of sheaves on a suitable site." My …
Jason Rute's user avatar
  • 6,287