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math.DG2021★ 7 cited
Twistor geometry of the Flag manifold
Amedeo Altavilla, Edoardo Ballico, Maria Chiara Brambilla +1
A study is made of algebraic curves and surfaces in the flag manifold , and their configuration relative to the twistor projection from to th…
math.DG2019★ 5 cited
Algebraic surfaces with infinitely many twistor lines
Amedeo Altavilla, Edoardo Ballico
We prove that a reduced and irreducible algebraic surface in containing infinitely many twistor lines cannot have odd degree. Then, exploiting the theory of quate…
math.DG2018★ 3 cited
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 . We prove three results abou…