Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constructing Coherently G-invariant Modules   Let $G$ be a reductive group acting on a path algebra $kQ$ as automorphisms.
We assume that $G$ admits a graded polynomial representation theory, and the
action is polynomial. We describe the quiver $Q_G$ of the smash product algebra
$kQ\# k[M_G]^*$, where $M_G$ is the associated algebraic monoid of $G$. We use
$Q_G$-representations to construct $G$-invariant representations of $Q$. As an
application, we construct algebraic semi-invariants on the quiver
representation spaces from those $G$-invariant representations.

27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs