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gptkb:PSL(n,Z)
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PSL(2,Z) ≅ SL(2,Z)/{±I}
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gptkb:PSL(n,Z)
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center of SL(2,Z) is {±I}
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gptkb:PSL(n,Z)
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PSL(2,Z) is a Fuchsian group
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gptkb:SL(n,_ℤ)
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non-abelian
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gptkb:SL(n,_ℤ)
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has congruence subgroups
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gptkb:A_n_(alternating_group)
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trivial group
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gptkb:Special_linear_group
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gptkb:SL(2,_F)
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gptkb:PSL(n,Z)
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PSL(2,Z) is residually finite
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gptkb:PSL(n,Z)
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PSL(2,Z) is not simple
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gptkb:PSL(n,Z)
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PSL(2,Z) acts on upper half-plane
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gptkb:PSL(n,Z)
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PSL(2,Z) is the modular group
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gptkb:SL(n,_ℤ)
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generated by elementary matrices
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gptkb:PSL(n,Z)
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PSL(2,Z) ≅ C_2 * C_3
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gptkb:SL(n,_ℤ)
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modular group
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gptkb:PSL(n,Z)
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PSL(2,Z) is generated by S and T
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gptkb:PSL(n,Z)
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PSL(2,Z) is a non-abelian free product
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gptkb:PSL(n,Z)
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PSL(2,Z) is not finite
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gptkb:SL(n,_ℤ)
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important in modular forms
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