Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Propagation of singularities for the wave equation on conic manifolds   For the wave equation associated to the Laplacian on a compact manifold with
boundary with a conic metric (with respect to which the boundary is metrically
a point) the propagation of singularities through the boundary is analyzed.
Under appropriate regularity assumptions the diffracted, non-direct, wave
produced by the boundary is shown to have Sobolev regularity greater than the
incoming wave.

26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom