Topology of a complex double‐plane branching along a real line arrangement

Ichiro Shimada

Mathematische Nachrichten, 2025, vol. 298, issue 7, 2204-2241

Abstract: We investigate the topology of the double cover of the complex affine plane branching along a nodal real line arrangement. We define certain topological 2‐cycles in the double plane using the real structure of the arrangement, and calculate their intersection numbers.

Date: 2025
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