English

Singularities of Generic Line Congruences

Differential Geometry 2021-10-26 v2

Abstract

Line congruences are 22-dimensional families of lines in 33-space. The singularities that appear in generic line congruences are folds, cusps and swallowtails. In this paper we give a geometric description of these singularities. The main tool used is the existence of an equiaffine pair defining a generic line congruence.

Keywords

Cite

@article{arxiv.2108.06525,
  title  = {Singularities of Generic Line Congruences},
  author = {Marcos Craizer and Ronaldo Alves Garcia},
  journal= {arXiv preprint arXiv:2108.06525},
  year   = {2021}
}

Comments

23 pages, 5 figures

R2 v1 2026-06-24T05:06:53.937Z