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Patchworking singular algebraic curves. I. (English) Zbl 1128.14019
This paper is devoted to the presentation of a general patchworking procedure to construct reduced singular complex curves having prescribed singularities and belonging to a given linear system on an algebraic surface. The patchworking procedure to construct a curve \(C\) with singularities of given type on an algebraic surface \(X\) uses a reducible surface \(X_0\) which is a degeneration of \(X\), then construct a curve \(C_0\) on \(X_0\) and prove that \(C_0\) deforms to \(C\) on \(X\).
The paper under review significantly generalizes the preceding works by the authors and others by using weaker assumptions to prove that \(C_0\) deforms to \(C\) on \(X\). In the second part of this paper [Isr. J. Math. 151, 145–166 (2006; Zbl 1128.14020)], the authors apply this general procedure to produce detailed examples.

14H20 Singularities of curves, local rings
Full Text: DOI
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