Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Following the spacial dynamics of COVID-19 in Mexico and some notes   Actually, after one year it is recognized that the evolution of COVID-19 is
different in each country or region around the world. In this paper, we do a
revision to the date about COVID-19 evolution in Mexico, we explain where the
main epicenter and states with most high impact. Mexico has a particular
geographical position in the American continent because it is a natural bridge
between the USA and Latin America, that represents a special point of
propagation because between other facts this virus is transported by people of
different nationalities migrating to the USA. The research in this paper helps
to understand why Mexico is one of the countries with the most high mortality
impact by this new virus and how the lockdown works in the population. Finally,
we give a practical perspective as this evolution is a complex system.

22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org