Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Minimal free resolutions for homogeneous ideals with Betti numbers
  $1,n,n,1$   We investigate the standard generalized Gorenstein algebras of homological
dimension three, giving a structure theorem for their resolutions. Moreover in
many cases we are able to give a complete description of their graded Betti
numbers.

28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg