Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized T-Q relations and the open XXZ chain   We propose a generalization of the Baxter T-Q relation which involves more
than one independent Q(u). We argue that the eigenvalues of the transfer matrix
of the open XXZ quantum spin chain are given by such generalized T-Q relations,
for the case that at most two of the boundary parameters {\alpha_-, \alpha_+,
\beta_-, \beta_+} are nonzero, and the bulk anisotropy parameter has values
\eta = i \pi/2, i\pi/4, ...

3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs