Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Differential operator realizations of superalgebras and free field
  representations of corresponding current algebras   Based on the particular orderings introduced for the positive roots of finite
dimensional basic Lie superalgebras, we construct the explicit differential
operator representations of the $osp(2r|2n)$ and $osp(2r+1|2n)$ superalgebras
and the explicit free field realizations of the corresponding current
superalgebras $osp(2r|2n)_k$ and $osp(2r+1|2n)_k$ at an arbitrary level $k$.
The free field representations of the corresponding energy-momentum tensors and
screening currents of the first kind are also presented.

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The categories of this paper are: cs
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn