Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Laplacian subalgebra of certain tensors of group von Neumann
  algebras   In this paper, we exhibit strongly singular maximal abelian subalgebras
living inside certain k-folded tensors of von Neumann group factors. The two
classes of groups under consideration are the free groups of rank greater than
2 and the free product of m>2 groups, all finite and having the same order p>2
(m>p-1). We prove actually more, namely that the unique trace preserving
conditional expectations from these group factors onto their Laplacian
subalgebras are asymptotic homomorphisms, which in turn implies that the
subalgebras are strongly singular masas.

11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys