Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A fitting function for the SNAP data   A mathematically motivated fitting function for analyzing supernovae
distance-redshift data is suggested. It is pointed out that this function can
be useful in analyzing SNAP data. To illustrate our method, we analyze current
experimental data which includes 78 supernovae and 20 radio galaxies. From
these data we obtain vacuum equation of state in a model independent way. We
show that the flat Universe model with a cosmological constant is in a good
agreement with observations.

27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an