Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A remark on the constructibility of real root representations of quivers
  using universal extension functors   In this paper we consider the following question: Is it possible to construct
all real root representations of a given quiver Q by using universal extension
functors, starting with a real Schur representation? We give a concrete example
answering this question negatively.

18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat