ON THE LOCUS OF GENUS 3 CURVES THAT ADMIT MEROMORPHIC DIFFERENTIALS WITH A ZERO OF ORDER 6 AND A POLE OF ORDER 2

被引:0
|
作者
Castorena, Abel [1 ]
Gendron, Quentin [1 ,2 ]
机构
[1] Ctr Ciencias Matemat UNAM, Antigua Car Patzcuaro 8701, Morelia, Michoacan, Mexico
[2] Ctr Invest Matemat, AP 402, Guanjuato 36000, Gto, Mexico
关键词
Abelian differentials; Differentials of second kind; Moduli Space of curves; Deligne-Mumford compactification; Picard group; MODULI SPACE; ABELIAN DIFFERENTIALS; KODAIRA DIMENSION; STRATA;
D O I
10.5802/aif.3472
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The main goal of this article is to compute the class of the divisor of (M) over bar3 obtained by taking the closure of the image of Omega M-3(6;-2) by the forgetful map. This is done using Porteous formula and the theory of test curves. For this purpose, we study the locus of meromorphic differentials of the second kind, computing the dimension of the map of these loci to M-g and solving some enumerative problems involving such differentials in low genus. A key tool of the proof is the compactification of strata recently introduced by Bainbridge-Chen-Gendron-Grushevsky-Moller.
引用
收藏
页码:261 / 299
页数:40
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