Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Double total ramifications for curves of genus 2   Inside the moduli space of curves of genus 2 with 2 marked points we consider
the loci of curves admitting a map to P^1 of degree d totally ramified over the
two marked points, for d>= 2. Such loci have codimension two. We compute the
class of their compactifications in the moduli space of stable curves. Several
results will be deduced from this computation.

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The categories of this paper are: cs
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat