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1. CMB 2009 (vol 52 pp. 285)
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Global Geometrical Coordinates on Falbel's Cross-Ratio Variety Falbel has shown that four pairwise distinct points on the boundary
of a
complex hyperbolic $2$-space are completely determined, up to conjugation
in ${\rm PU}(2,1)$, by three complex cross-ratios satisfying two real
equations. We give global geometrical coordinates on the resulting
variety.
Categories:32G05, 32M05 |