Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observational Hints of a Pre--Inflationary Scale?   We argue that the lack of power exhibited by cosmic microwave background
(CMB) anisotropies at large angular scales might be linked to the onset of
inflation. We highlight observational features and theoretical hints that
support this view, and present a preliminary estimate of the physical scale
that would underlie the phenomenon.

25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio