학술논문

The Schläfli Fan
Document Type
Original Paper
Source
Discrete & Computational Geometry. 64(2):355-381
Subject
Tropical algebraic geometry
Regular triangulations
Polyhedral computation
Lines in cubic surfaces
Language
English
ISSN
0179-5376
1432-0444
Abstract
Smooth tropical cubic surfaces are parametrized by maximal cones in the unimodular secondary fan of the triple tetrahedron. There are 34484386714373645 such cones, organized into a database of 34484386714373645 symmetry classes. The Schläfli fan gives a further refinement of these cones. It reveals all possible patterns of lines on tropical cubic surfaces, thus serving as a combinatorial base space for the universal Fano variety. This article develops the relevant theory and offers a blueprint for the analysis of big data in tropical geometry.