Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A graded pullback structure of Leavitt path algebras of trimmable graphs   Motivated by recent results in graph C*-algebras concerning an equivariant
pushout structure of the Vaksman-Soibelman quantum odd spheres, we introduce a
class of graphs called trimmable. Then we show that the Leavitt path algebra of
a trimmable graph is graded-isomorphic to a pullback algebra of simpler Leavitt
path algebras and their tensor products.

15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg