Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On algebraic mixed Hodge substructures of H^2   This paper has been superseded to a great extent by the following:
  Paper: math.AG/0511558 Title: The Neron-Severi group of a proper seminormal
complex variety Authors: L. Barbieri-Viale, A. Rosenschon & V. Srinivas
  Paper: math.AG/0102150 Title: Deligne's Conjecture on 1-Motives Authors: Luca
Barbieri-Viale, Andreas Rosenschon, Morihiko Saito Journal-ref: Ann. of Math.
(2), Vol. 158 (2003), no. 2, 593--633

7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol