Cartan integer

Noun

Meaning

Cartan integer (plural Cartan integers)

(mathematics) Any of the scalar products




a

i
j


=
2



(

r

i


,

r

j


)


(

r

i


,

r

i


)





{\displaystyle a_{ij}=2{(r_{i},r_{j}) \over (r_{i},r_{i})}}

that make up the Cartan matrix of a simple Lie algebra.

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