Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Laplacian spectral characterization of some double starlike trees   A tree is called double starlike if it has exactly two vertices of degree
greater than two. Let $H(p,n,q)$ denote the double starlike tree obtained by
attaching $p$ pendant vertices to one pendant vertex of the path $P_n$ and $q$
pendant vertices to the other pendant vertex of $P_n$. In this paper, we prove
that $H(p,n,q)$ is determined by its Laplacian spectrum.

23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc