Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Various Types of D-Branes in the Boundary H3+ Model   We comment on the D-brane solutions for the boundary H3+ model that have been
proposed so far and point out that many more types of D-branes should be
considered possible. We start a systematic derivation of the 1/2- and
b^{-2}/2-shift equations corresponding to each type. These equations serve as
consistency conditions and we discuss their possible solutions. On this basis,
we show for the known AdS_2^(d) branes, that only strings transforming in
finite dimensional SL(2) representations can couple to them. Moreover, we also
demonstrate that strings in the infinite dimensional continuous SL(2)
representations do not couple consistently to the known AdS_2 branes. For some
other types, we show that no consistent solutions seem to exist at all.

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The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci