Tropical geometry of genus two curves
Tropical geometry of genus two curves
复制标题
属两条曲线的热带几何
DOI:
10.1016/j.jalgebra.2018.08.034
复制
发表时间:
2019
影响因子:
0.9
通讯作者:
Markwig, Hannah
中科院分区:
文献类型:
--
作者:
Cueto, Maria Angelica;Markwig, Hannah
We exploit three classical characterizations of smooth genus two curves to study their tropical and analytic counterparts. First, we provide a combinatorial rule to determine the dual graph of each algebraic curve and the metric structure on its minimal Berkovich skeleton. Our main tool is the description of genus two curves via hyperelliptic covers of the projective line with six branch points. Given the valuations of these six points and their differences, our algorithm provides an explicit harmonic 2-to-1 map to a metric tree on six leaves. Second, we use tropical modifications to produce a faithful tropicalization in dimension three starting from a planar hyperelliptic embedding.Finally, we consider the moduli space of abstract genus two tropical curves and translate the classical Igusa invariants characterizing isomorphism classes of genus two algebraic curves into the tropical realm. While these tropical Igusa functions do not yield coordinates in the tropical moduli space, we propose an alternative set of invariants that provides new length data.
登录
查看更多内容
影响因子:
1.6
作者:
Andreas Gross
通讯作者:
Andreas Gross
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
R. Cavalieri;H. Markwig;Dhruv Ranganathan
通讯作者:
Dhruv Ranganathan
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
G. Mikhalkin
通讯作者:
G. Mikhalkin
DOI:
10.5427/jsing.2012.4e
发表时间:
2011
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Erwan Brugall'e;Luc'ia L'opez de Medrano
通讯作者:
Luc'ia L'opez de Medrano
DOI:
10.1090/s0025-5718-07-01986-2
发表时间:
2005
期刊:
Math. Comput.
影响因子:
--
作者:
K. Fukuda;A. Jensen;Rekha R. Thomas
通讯作者:
Rekha R. Thomas