modular group PSL(2, Z)

GPTKB entity

Statements (49)
Predicate Object
gptkbp:instanceOf gptkb:group_of_people
modular group
discrete group
gptkbp:acts_by fractional linear transformations
gptkbp:actsOn upper half-plane
gptkbp:centralTo trivial
gptkbp:definedIn PSL(2, Z) = SL(2, Z) / {±I}
gptkbp:generation S
T
gptkbp:has_fundamental_domain {z in H : |z| ≥ 1, -1/2 ≤ Re(z) ≤ 1/2}
gptkbp:hasProperty non-abelian
finitely presented
free product of cyclic groups of order 2 and 3
gptkbp:hasSubgroup gptkb:PSL(2,_R)
https://www.w3.org/2000/01/rdf-schema#label modular group PSL(2, Z)
gptkbp:importantFor complex analysis
modular forms
number theory
elliptic curves
gptkbp:loveInterest (ST)^3 = 1
S^2 = 1
gptkbp:notable_quotient gptkb:PSL(2,_Z/NZ)
gptkbp:notablePlace S
T
gptkbp:notation gptkb:PSL(2,_Z)
modular group
Γ
gptkbp:order infinite
gptkbp:presentedBy ⟨S, T | S^2 = 1, (ST)^3 = 1⟩
gptkbp:quotient_space modular group
gptkbp:relatedTo modular arithmetic
modular functions
modular group action
modular group congruence subgroups
modular symbols
gptkbp:S_matrix [[0, -1], [1, 0]]
gptkbp:studiedBy gptkb:Felix_Klein
gptkb:Henri_Poincaré
gptkb:Richard_Dedekind
gptkbp:T_matrix [[1, 1], [0, 1]]
gptkbp:used_in gptkb:modular_curves
gptkb:string_theory
gptkb:monstrous_moonshine
automorphic forms
modular functions
modular forms theory
modular group tessellation
gptkbp:bfsParent gptkb:modular_group
gptkbp:bfsLayer 5