trureturingGitHub MATHEMATICAL ATLAS

Depth / CONCEPT

Discriminants Under Mobius Pullback

A Mobius pullback scales a quadratic discriminant by the square of its determinant, so unimodular transfers preserve it.

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DIRECT PREREQUISITES1
DIRECT CONSEQUENCES1
PROOF DEPTH2
DOCUMENT LINKS1
THEOREM

Unimodular Mobius transfer preserves the discriminant

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Periodic Continued Fractions Are QuadraticPeriodic Continued FractionsAre QuadraticDiscriminants Under Mobius PullbackDiscriminants Under MobiusPullbackQuadratic Invariants Along Complete QuotientsQuadratic Invariants AlongComplete Quotients
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Lean sourceResearch workspace
Status
Closed
Depth
2
Layer
D5/S1
Domain
Depth
Node ID
D5/S1/Depth/ContinuedFractions/CompleteQuotientBound
Repository path
D5/S1/Depth/ContinuedFractions/CompleteQuotientBound.lean
Truth release
sha256:c0d04258d27972c1cf58485e21d64dbcbe336405346ba95133913c64ba2856aa
Source commit
745bf90812f7175f83e1235688249f9495f23bfc
Source tree
143bc6c9ab9054c406f0cdd7f3b296eb38768b5c

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