On Legendrian singularities

Shy{ūichi Izumiya
1987 Proceedings of the American Mathematical Society  
We introduce three natural equivalence relations among Legendrian singularities and study their properties by using recent results of the theory of singularities of smooth map germs.
doi:10.1090/s0002-9939-1987-0911045-0 fatcat:sk63u7rdrfhapogaeadxy4ixda