dynkinType(RootSystem) -- the Dynkin type of a root system

Synopsis

• Function: dynkinType

• Usage:

  dynkinType(R)

• Inputs:
  • R, an instance of the type RootSystem,
• Outputs:
  • a list, of types of the irreducible components of the root system R

Description

i1 : R=rootSystemE(6)++rootSystemA(4)++rootSystemB(3)++rootSystemA(4);

i2 : dynkinType(R)

o2 = DynkinType{{A, 4}, {A, 4}, {B, 3}, {E, 6}}

o2 : DynkinType