Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Joseph ideal for $\mathfrak{sl}(m|n)$   Using deformation theory, Braverman and Joseph obtained an alternative
characterisation of the Joseph ideal for simple Lie algebras, which included
even type A. In this note we extend that characterisation to define a
remarkable quadratic ideal for sl(m|n). When m-n>2 we prove the ideal is
primitive and can also be characterised similarly to the construction of the
Joseph ideal by Garfinkle.

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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an