Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Geometric Approach to Rank Metric Codes and a Classification of
  Constant Weight Codes   In this work we develop a geometric approach to the study of rank metric
codes. Using this method, we introduce a simpler definition for generalized
rank weight of linear codes. We give a complete classification of constant rank
weight code and we give their generalized rank weights.

28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph