Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lp almost conformal isometries of Sub-Semi-Riemannian metrics and
  solvability of a Ricci equation   Let M be a smooth compact manifold without boundary. We consider two smooth
Sub-Semi-Riemannian metrics on M. Under suitable conditions, we show that they
are almost conformally isometric in an Lp sense. Assume also that M carries a
Riemannian metric with parallel Ricci curvature. Then an equation of Ricci
type, is in some sense solvable, without assuming any closeness near a special
metric.

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The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics