Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Understanding Something About Nothing: Radiation Zeros   Radiation symmetry is briefly reviewed, along with its historical,
experimental, computational, and theoretical relevance. A sketch of the proof
of a theorem for radiation zeros is used to highlight the connection between
gauge-boson couplings and Poincare transformations. It is emphasized that while
mostly bad things happen to good zeros, the weak-boson self-couplings continue
to be intimately tied to the best examples of exact or approximate zeros.

17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
1
The categories of this paper are: cs
3
The categories of this paper are: physics
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys