Classes of Weierstrass points on genus $2$ curves
Authors:
Renzo Cavalieri and Nicola Tarasca
Journal:
Trans. Amer. Math. Soc. 372 (2019), 2467-2492
MSC (2010):
Primary 14H99; Secondary 14C99
DOI:
https://doi.org/10.1090/tran/7626
Published electronically:
May 20, 2019
MathSciNet review:
3988583
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Abstract | References | Similar Articles | Additional Information
Abstract: We study the codimension $n$ locus of curves of genus $2$ with $n$ distinct marked Weierstrass points inside the moduli space of genus $2$, $n$-pointed curves, for $n \leq 6$. We give a recursive description of the classes of the closure of these loci inside the moduli space of stable curves. For $n\leq 4$, we express these classes using a generating function over stable graphs indexing the boundary strata of moduli spaces of pointed stable curves. Similarly, we express the closure of these classes inside the moduli space of curves of compact-type for all $n$. This is a first step in the study of the structure of hyperelliptic classes in all genera.
- Vance Blankers and Renzo Cavalieri, Intersections of $\omega$ classes in $\overline {\mathcal {M}}_{g,n}$, Preprint, arXiv:1705.10955, (2017).
- Dawei Chen and Nicola Tarasca, Extremality of loci of hyperelliptic curves with marked Weierstrass points, Algebra Number Theory 10 (2016), no. 9, 1935β1948. MR 3576115, DOI https://doi.org/10.2140/ant.2016.10.1935
- David Eisenbud and Joe Harris, The Kodaira dimension of the moduli space of curves of genus $\geq 23$, Invent. Math. 90 (1987), no. 2, 359β387. MR 910206, DOI https://doi.org/10.1007/BF01388710
- C. Faber and R. Pandharipande, Relative maps and tautological classes, J. Eur. Math. Soc. (JEMS) 7 (2005), no. 1, 13β49. MR 2120989, DOI https://doi.org/10.4171/JEMS/20
- F. Janda, R. Pandharipande, A. Pixton, and D. Zvonkine, Double ramification cycles on the moduli spaces of curves, Publ. Math. Inst. Hautes Γtudes Sci. 125 (2017), 221β266. MR 3668650, DOI https://doi.org/10.1007/s10240-017-0088-x
- Alina Marian, Dragos Oprea, Rahul Pandharipande, Aaron Pixton, and Dimitri Zvonkine, The Chern character of the Verlinde bundle over $\overline {\mathcal M}_{g,n}$, J. Reine Angew. Math. 732 (2017), 147β163. MR 3717090, DOI https://doi.org/10.1515/crelle-2015-0003
- Sam Payne, Personal communication.
- Rahul Pandharipande, Aaron Pixton, and Dimitri Zvonkine, Relations on $\overline {\scr M}_{g,n}$ via $3$-spin structures, J. Amer. Math. Soc. 28 (2015), no. 1, 279β309. MR 3264769, DOI https://doi.org/10.1090/S0894-0347-2014-00808-0
- Rahul Pandharipande, Aaron Pixton, and Dimitri Zvonkine, Tautological relations via $r$-spin structures, Preprint, arXiv:1607.00978, (2016).
- Nicola Tarasca, Double total ramifications for curves of genus 2, Int. Math. Res. Not. IMRN 19 (2015), 9569β9593. MR 3431602, DOI https://doi.org/10.1093/imrn/rnu228
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Additional Information
Renzo Cavalieri
Affiliation:
Department of Mathematics, Colorado State University, Fort Collins, Colorado 80523
MR Author ID:
734177
Email:
renzo@math.colostate.edu
Nicola Tarasca
Affiliation:
Department of Mathematics, Rutgers University, Piscataway, New Jersey 08854
MR Author ID:
962672
ORCID:
0000-0003-1002-0286
Email:
nicola.tarasca@rutgers.edu
Keywords:
Effective cycles on moduli spaces of curves,
the strata algebra,
hyperelliptic curves.
Received by editor(s):
November 12, 2017
Received by editor(s) in revised form:
May 28, 2018
Published electronically:
May 20, 2019
Article copyright:
© Copyright 2019
American Mathematical Society