Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectrum of weighted composition operators. Part VIII. Lower
  semi-Fredholm and Fredholm spectra of weighted compositions on $C(K)$, case
  of non-invertible surjections   We characterize lower semi-Fredholm and Fredholm of weighted composition
operators on $C(K)$ in the case when the corresponding map is an open
surjection of the compact space $K$ onto itself. The obtained criterions
involve the notion of almost homeomorphisms of compact spaces.

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The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
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The categories of this paper are: econ