Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higher-Spin Theories and $Sp(2M)$ Invariant Space--Time   Some methods of the ``unfolded dynamics'' machinery particularly useful for
the analysis of higher spin gauge theories are summarized. A formulation of 4d
conformal higher spin theories in Sp(8) invariant space-time with matrix
coordinates and its extension to Sp(2M) invariant space-times are discussed. A
new result on the global characterizaton of causality of physical events in the
Sp(2M) invariant space-time is announced.

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The categories of this paper are: physics
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The categories of this paper are: q-alg
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph