Title
Real Space Sextics And Their Tritangents
Abstract
The intersection of a quadric and a cubic surface in 3-space is a canonical curve of genus 4. It has 120 complex tritangent planes. We present algorithms for computing real tritangents, and we study the associated discriminants. We focus on space sextics that arise from del Pezzo surfaces of degree one. Their numbers of planes that are tangent at three real points vary widely; both 0 and 120 are attained. This solves a problem suggested by Arnold Emch in 1928.
Year
DOI
Venue
2018
10.1145/3208976.3208977
ISSAC'18: PROCEEDINGS OF THE 2018 ACM INTERNATIONAL SYMPOSIUM ON SYMBOLIC AND ALGEBRAIC COMPUTATION
Field
DocType
ISSN
Cubic surface,Mathematical analysis,Tangent,Mathematics,Quadric
Conference
Proceedings of the International Symposium on Symbolic and Algebraic Computation (ISSAC) 2018
Citations 
PageRank 
References 
1
0.52
5
Authors
4
Name
Order
Citations
PageRank
Avinash Kulkarni120.95
Yue Ren213.90
Mahsa Sayyary Namin310.52
Bernd Sturmfels4926136.85