Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inhomogeneous Strichartz estimates with spherical symmetry and
  applications to the Dirac-Klein-Gordon system in two space dimensions   In this {\bf draft version} we prove inhomogeneous Strichartz estimates with
spherical symmetry in the abstract setting via duality arguments. Then we
derive some new explicit estimates in the context of the wave equation. This
allows us to prove global existence of spherically symmetric solutions to the
Dirac-Klein-Gordon (DKG) system in two space dimensions.

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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: hep-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: dg-ga