The seesaw theorem determines a line bundle on a product from its restrictions to fibers: if it is trivial on all fibers over one factor and on one transverse section, then it is trivial.

Ancestors (11)

  1. Identity component of the Picard group
  2. Homomorphism associated to a line bundle on an abelian variety
  3. Theorem of the square
  4. Abelian variety
  5. Group variety
  6. Algebraic variety
  7. Algebraic geometry
  8. Geometry and topology
  9. Area of mathematics
  10. Mathematics
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