Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Contributed Discussion to Bayesian Solution Uncertainty Quantification
  for Differential Equations   We begin by introducing the main ideas of the paper under discussion, and we
give a brief description of the method proposed. Next, we discuss an
alternative approach based on B-spline expansion, and lastly we make some
comments on the method's convergence rate.

29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol