Projective classification of lines and quadric sections in Q^{2,2} produces a one-parameter family of real-analytic non-spherical Levi-nondegenerate CR structures on S^3 parameterized by Coxeter's inversive distance.
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2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
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2026 2verdicts
UNVERDICTED 2representative citing papers
The Donaldson-Friedman singular fibre is realized as a Ferrand pushout whose operational Chow ring is an equalizer, yielding specialization formulas and additive second Chern cycles plus polarized charges for Ward-Hartshorne-Serre bundles.
citing papers explorer
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The Flat CR Twistor Model $Q^{2,2}$ and Its Algebraic Sections
Projective classification of lines and quadric sections in Q^{2,2} produces a one-parameter family of real-analytic non-spherical Levi-nondegenerate CR structures on S^3 parameterized by Coxeter's inversive distance.
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Geometry of the Donaldson-Friedman Pushout: Twistor degenerations and instanton charge
The Donaldson-Friedman singular fibre is realized as a Ferrand pushout whose operational Chow ring is an equalizer, yielding specialization formulas and additive second Chern cycles plus polarized charges for Ward-Hartshorne-Serre bundles.