Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An omission in Special Relativity   In Special Relativity there are infinitely many equivalence classes of frames
of reference. In each such class every two frames of reference move uniformly
with respect to one another. It appears that the following questions have never
been asked : 1) In which of such equivalence classes of frames of reference is
Special Relativity supposed to hold ? 2) How can we identify such a class, and
do so theoretically or empirically ?

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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: stat
2
The categories of this paper are: math