Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Uniqueness for SQG patch solutions   This paper is about the evolution of a temperature front governed by the
Surface quasi-geostrophic equation. The existence part of that program within
the scale of Sobolev spaces was obtained by one of the authors [10]. Here we
revisit that proof introducing some new tools and points of view which allow us
to conclude the also needed uniqueness result.

20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph