Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some characterizations of special rings by delta-invariant   This paper is devoted to present some characterizations for a local ring to
be generically Gorenstein and Gorenstein by means of $\delta$-invariant and
linkage theory.

23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th