Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semilinear wave equations on accelerated expanding FLRW spacetimes   We identify a large class of systems of semilinear wave equations, on fixed
accelerated expanding FLRW spacetimes, with nearly at spatial slices, for which
we prove small data future global well-posedness. The family of systems we
consider is large in the sense that, among other examples, it includes general
wave maps, as well as natural generalizations of some of Fritz John's "blow up"
equations (whose future blow up disappears, in our setting, as a consequence of
the spacetime expansion). We also establish decay upper bounds, which are sharp
within the family of systems under analysis.

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The categories of this paper are: eess
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The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th