generator of PSL(2,ℤ)
C51329
concept
A generator of PSL(2,ℤ) is an element (typically represented by a 2×2 integer matrix modulo ±I) that, together with another such element, produces the entire projective modular group under composition.
Instances (1)
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T:z ↦ z+1
surface form: T : z ↦ z + 1