Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: How interband pairing increases the superconductive transition
  temperature   The possible strong electron-phonon coupling and the pairing within the full
width of the electron band and not only in a narrow sheet near the Fermi
surface are taken into account. It is found that the effect of pairing of
electrons belonging to different bands is crucial to the appearance of high Tc
in some two-band materials. The existence of another set of the two-band high
temperature materials with transition temperature Tc, not yielding Tc in
cuprates, is predicted.

0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess