Singular points of real quartic curves via computer algebra

Details Singular points of real quartic curves via computer algebra Singular points of real quartic curves via computer algebra

2007-07-02

arxiv.org/abs/0707.0241v1

Mathematics

Algebraic Geometry

24 pages, http://www.math.ttu.edu/~weinberg/

Scientific paper

There are thirteen types of singular points for irreducible real quartic curves and seventeen types of singular points for reducible real quartic curves. This classification is originally due to D.A. Gudkov. There are nine types of singular points for irreducible complex quartic curves and ten types of singular points for reducible complex quartic curves. We derive the complete classification with proof by using the computer algebra system Maple. We clarify that the classification is based on computing just enough of the Puiseux expansion to separate the branches. Thus, the proof consists of a sequence of large symbolic computations that can be done nicely using Maple.

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