Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gauge fields-strings duality and tensionless superstrings   The duality map between gauge theories and strings suggests that when the
gauge theory is in the weak coupling regime the dual string tension effectively
tends to zero, $\alpha' \to \infty$. This observation of Sundborg and Witten
initiates a fresh interest to the old problem of tensionless limit of standard
string theory and to the description of its genuine symmetries. We approach
this problem formulating tensionless string theory by means of geometrical
concept of surface perimeter. The perimeter action uniquely leads to a
tensionless string theory.

28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs