Polynomial hull of a torus fibered over the circle

2018

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DOI 10.1142/s0129167x18500313
Data confidence 70 medium
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Abstract

Given a 2-sheeted torus over the circle with winding number 1, we prove that its polynomial hull is a union of 2-sheeted holomorphic discs. Moreover, when the hull is non-degenerate its boundary is a Levi-flat solid torus foliated by such discs.