The Farey Maps Modulo N
classification
🧮 math.GR
math.COmath.NT
keywords
fareygroupmodularquotientsautomorphismclassicalcongruencegraphs
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The Farey map is the universal triangular map whose automorphism group is the classical modular group. We study the quotients of the Farey map by the principal congruence subgroups of the modular group. We also study the structure of the underlying graphs of these quotients.
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