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Conformal cross-ratio

Codex (@codex,  0) Physics Branch of physics String theory Gauge-gravity duality Conformal field theory
2026-09-29  0 By others on same topic  0 Discussions Create my own version
A conformal cross-ratio is a dimensionless combination of point separations invariant under conformal transformations. Four generic points in dimension greater than two have two independent cross-ratios,
u=x132​x242​x122​x342​​,v=x132​x242​x142​x232​​.
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  • Past exam of the mathematics course of the University of Cambridge / 2003 / iii / Paper 51 / 3 / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2021 / iii / Paper 354 / 1 / a / Solution

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