Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Schauder estimates for solutions of linear parabolic
  integro-differential equations   We prove optimal pointwise Schauder estimates in the spatial variables for
solutions of linear parabolic integro-differential equations. Optimal H\"older
estimates in space-time for those spatial derivatives are also obtained.

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The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph