Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ortho-symmetric modules, Gorenstein algebras and derived equivalences   A new homological symmetry condition is exhibited that extends and unifies
several recently defined and widely used concepts. Applications include general
constructions of tilting modules and derived equivalences, and
characterisations of Gorenstein properties of endomorphism rings.

30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph