Variations on Van Kampen's method

2003/01/28 by David Bessis, Bessis, David
Computer Science · Mathematics · #20F05 #57M05 #Algebraic Geometry (math.AG) #FOS: Mathematics #Group Theory (math.GR) #Matrix Theory and Algorithms #math.AG #math.GR #msc:20F05 #msc:57M05

paper · pdf · doi:10.48550/arxiv.math/0301327

12 pages

arxiv created 2003/01/28 · openalex publication_date 2003/01/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We give a detailed account of the classical Van Kampen method for computing presentations of fundamental groups of complements of complex algebraic curves, and of a variant of this method, working with arbitrary projections (even with vertical asymptotes).

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