Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Roman Jackiw: A Beacon in a Golden Period of Theoretical Physics   This text offers reminiscences of my personal interactions with Roman Jackiw
as a way of looking back at the very fertile period in theoretical physics in
the last quarter of the 20th century.

34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg