Cartan matrices

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:characterizedBy determinant nonzero
diagonal entries equal to 2
integer entries
off-diagonal entries less than or equal to 0
gptkbp:dimensions n \\times n matrix
https://www.w3.org/2000/01/rdf-schema#label Cartan matrices
gptkbp:namedAfter gptkb:Élie_Cartan
gptkbp:relatedTo gptkb:Dynkin_diagrams
gptkb:generalized_Cartan_matrices
gptkbp:satisfies a_{ii} = 2
a_{ij} = 0 \\implies a_{ji} = 0
a_{ij} \\in \\mathbb{Z}
a_{ij} \\leq 0 for i \\neq j
gptkbp:used_in gptkb:Kac–Moody_algebras
representation theory
root systems
Lie algebra theory
classification of simple Lie algebras
theory of algebraic groups
gptkbp:used_to_classify gptkb:semisimple_Lie_algebras
gptkbp:bfsParent gptkb:Dynkin_diagrams
gptkbp:bfsLayer 7