
Among the class of Kähler surfaces with zero scalar curvature, only the twistor space of those surfaces which are also Ricci-flat can admit nonconstant meromorphic functions. Moreover, the transcendental degree of the function field of the twistor space over such surfaces is equal to one. This result leads to a classification of twistor spaces with positive algebraic dimensions.
twistor spaces, self-dual manifolds, Twistor theory, double fibrations (complex-analytic aspects), Meromorphic functions of several complex variables, meromorphic function, Global differential geometry of Hermitian and Kählerian manifolds, zero scalar curvature, Kähler surfaces
twistor spaces, self-dual manifolds, Twistor theory, double fibrations (complex-analytic aspects), Meromorphic functions of several complex variables, meromorphic function, Global differential geometry of Hermitian and Kählerian manifolds, zero scalar curvature, Kähler surfaces
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