A. Altavilla

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20182026

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math.DG2026

The Flat CR Twistor Model $Q^{2, 2}$ and Its Algebraic Sections

Amedeo Altavilla, Stefano Marini

We study the flat CR twistor model $Q^{2, 2} \subset CP^{3}$ by explicit projective methods. Using the anti-holomorphic involution $j$ associated with the twistor fibration, w…

math.DG2018

Three Topological Results on the Twistor Discriminant Locus in the 4-Sphere

Amedeo Altavilla, Edoardo Ballico

We exploit techniques from classical (real and complex) algebraic geometry for the study of the standard twistor fibration $π : CP^{3} \to S^{4}$ . We prove three results abou…

The Flat CR Twistor Model Q2,2 and Its Algebraic Sections

Three Topological Results on the Twistor Discriminant Locus in the 4-Sphere

The Flat CR Twistor Model $Q^{2, 2}$ and Its Algebraic Sections