Property (T)

GPTKB entity

Statements (33)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:alsoKnownAs gptkb:Kazhdan's_property_(T)
gptkbp:appliesTo topological groups
locally compact groups
gptkbp:characterizedBy existence of a spectral gap for unitary representations
gptkbp:contrastsWith amenability
gptkbp:example gptkb:SL(3,_Z)
abelian groups
free groups
compact groups
higher rank lattices
amenable groups
gptkbp:field gptkb:mathematics
ergodic theory
group theory
representation theory
operator algebras
https://www.w3.org/2000/01/rdf-schema#label Property (T)
gptkbp:implies fixed point property for affine isometric actions on Hilbert spaces
finite generation of discrete groups with property (T)
gptkbp:importantFor gptkb:C*-algebras
gptkb:von_Neumann_algebras
expander graphs
rigidity theory
gptkbp:introducedIn 1967
gptkbp:namedAfter gptkb:David_Kazhdan
gptkbp:relatedTo gptkb:Kazhdan_constant
property (FH)
property (τ)
gptkbp:usedIn construction of expanders
superrigidity theorems
gptkbp:bfsParent gptkb:Kazhdan's_property_(T)
gptkbp:bfsLayer 6