Proceedings of the London Mathematical Society Advance Access originally published online on February 18, 2008
Proceedings of the London Mathematical Society 2008 96(3):792-812; doi:10.1112/plms/pdn001
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© 2008 London Mathematical Society
Fully simple singularities of plane and space curves
Department of Mathematics
Technion
32000 Haifa
Israel
Received 20 July 2005. Revision received 16 April 2007.
In this wor we introduce the definition of fully simple singularities of parameterized curves and explain that this definition is more natural than the definition of simple singularities. The set of fully simple singularities is much smaller than the set of simple ones. We determine and classify all fully simple singularities of plane and space curves, with any number of components. Our classification results imply that any fully simple singularity of a plane or a space curve is quasi-homogeneous (whereas there is a number of non-quasi-homogeneous simple singularities). Another outcome of our classification results is a one-to-one correspondence between the fully simple singularities of plane curves and the classical A-D-E singularities of functions.
2000 Mathematics Subject Classification 14B05, 14H50, 58K60.
The work on this paper was supported by the Israel ScienceFoundation, grant 1356/04.