Group character

Character table

The character table of a group is a square1 matrix where each column is labeled by conjugacy class and each row by an Irrep. Let label irreps and label conjugacy classes . Then for all .

(trivial)

Properties characterising the character table, and thereby useful for determining its entries, include the Square sum of irrep dimensions and the Orthonormality of irreducible characters, which gives

we also have


#state/tidy | #lang/en | #SemBr

Footnotes

  1. Since The number of conjugacy classes equals the number of non-equivalent irreps of a group.