Volume 298, Issue 7 pp. 2204-2241
ORIGINAL ARTICLE

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

Ichiro Shimada

Corresponding Author

Ichiro Shimada

Mathematics Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Japan

Correspondence

Ichiro Shimada, Mathematics Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan.

Email: [email protected]

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First published: 10 June 2025

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.

CONFLICT OF INTEREST STATEMENT

The author declares no conflicts of interest.

DATA AVAILABILITY STATEMENT

The data supporting the findings of this study are available from the author upon reasonable request.

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