Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective basepoint-free theorem for semi-log canonical surfaces   This paper proposes a Fujita-type freeness conjecture for semi-log canonical
pairs. We prove it for curves and surfaces by using the theory of quasi-log
schemes and give some effective very ampleness results for stable surfaces and
semi-log canonical Fano surfaces. We also prove an effective freeness for log
surfaces.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org