Composition laws via stacks

From stacky wiki

Composition law paper todo:

a) Go over composition law proofs

b) Think about applications to composition laws

  • do comp laws hold over arbitrary rings?
  • try to use the "kernel thing" to generate new composition laws. (Need non-special groups. The usual setup uses pre-homogenous spaces. Maybe find some 'near misses' -- i.e., setups that people don't study because they don't give PHV's [what's a PHV? Anton 13:02, 21 November 2011 (PST)]
  • I don't really understand yet how people use composition laws to prove other cool theorems.
  • Melanie and Dan's paper, references to Melanie's thesis, etc
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