Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ill-posed formulation of the emission source localization in the
  radio-detection experiments of extensive air showers   Reconstruction of the curvatures of radio wavefronts of air showers initiated
by ultra high energy cosmic rays is discussed based on minimization algorithms
commonly used. We emphasize the importance of the convergence process induced
by the minimization of a non-linear least squares function that affects the
results in terms of degeneration of the solutions and bias. We derive a simple
method to obtain a satisfactory estimate of the location of the main point of
emission source, which mitigates the problems previously encountered.

35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin