Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Another Approach to Juhl's Conformally Covariant Differential Operators
  from $S^n$ to $S^{n-1}$   A family $({\mathbf D}_\lambda)_{\lambda\in \mathbb C}$ of differential
operators on the sphere $S^n$ is constructed. The operators are conformally
covariant for the action of the subgroup of conformal transformations of $S^n$
which preserve the smaller sphere $S^{n-1}\subset S^n$. The family of
conformally covariant differential operators from $S^n$ to $S^{n-1}$ introduced
by A. Juhl is obtained by composing these operators on $S^n$ and taking
restrictions to $S^{n-1}$.

25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
17
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
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
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The categories of this paper are: eess
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics