Fuchsian group
Sign in to savediscrete subgroup of the real projective special linear group of dimension 2
Connections
group action
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Möbius transformation
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unit disk
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upper half-plane
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SL2(R)
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triangle group
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mathematics
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International Standard Book Number
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Henri Poincaré
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rational number
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digital object identifier
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International Standard Serial Number
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group
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Euclidean geometry
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M. C. Escher
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non-Euclidean geometry
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abelian group
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hyperbolic geometry
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open set
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trace
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