A Dynkin diagram records the angles and relative lengths of the simple roots. A multiple-edge arrow points toward the shorter root.
An extended, or affine, Dynkin diagram adjoins the root , where is the highest root.

Ancestors (11)

  1. Root system
  2. Root-space decomposition
  3. Cartan subalgebra
  4. Semisimple Lie algebra
  5. Lie algebra
  6. Lie theory
  7. Diagonal dominance
  8. Algebra
  9. Area of mathematics
  10. Mathematics
  11. Home

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