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Definition

Character

Lie Groups and Lie Algebras · lie-groups.tex
The character of a finite-dimensional representation $(V, \rho)$ (Definition~Group Representation) is the function $\chi_V : G \to k$ defined by $\chi_V(g) = \mathrm{tr}(\rho(g))$. Characters are class functions: $\chi_V(hgh^{-1}) = \chi_V(g)$, which follows from the group structure (Definition~Group (Classical)).
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flowchart LR classDef current fill:#6366f1,color:#fff,stroke:#4f46e5 nca6bd350["Representation"] n71746aac["Group (Classical)"] ne83c1383["Character"]:::current n8aabc776["Proposition"] necf76e5d["Inner Product"] nca6bd350 --> ne83c1383 n71746aac --> ne83c1383 ne83c1383 --> n8aabc776 ne83c1383 --> n8aabc776 ne83c1383 --> necf76e5d click nca6bd350 "../objects/ca6bd350.html" "_self" click n71746aac "../objects/71746aac.html" "_self" click n8aabc776 "../objects/8aabc776.html" "_self" click necf76e5d "../objects/ecf76e5d.html" "_self"