Singularities cancellation on wave fronts
By using the idea of stabilization introduced by \textit{D. Fuchs} and \textit{S. Tabachnikov} in [Topology 36, No. 5, 1025-1053 (1997; Zbl 0904.57006)], the author establishes properties of deformations of Legendre knots in the contact manifold of cooriented contact elements of a surface \(M\), related with properties of the immersions of its projections on \(M\) (wave fronts).
scientific article; zbMATH DE number 1317246