Normal form of the swallowtail and its applications
Abstract
We construct a form of the swallowtail singularity in R3 which uses coordinate transformation on the source and isometry on the target. As an application, we classify configurations of asymptotic curves and characteristic curves near swallowtails.
Dedicated to Professor Go-o Ishikawa on the occasion of his sixtieth birthday. Partly supported by the JSPS KAKENHI 26400087.