Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deformations of pairs of Kleinian singularities   Kleinian singularities, i.e., the varieties corresponding to the algebras of
invariants of Kleinian groups are of fundamental importance for Algebraic
geometry, Representation theory and Singularity theory. The filtered
deformations of these algebras of invariants were classified by Slodowy (the
commutative case) and Losev (the general case). To an inclusion of Kleinian
groups, there is the corresponding inclusion of algebras of invariants. We
classify deformations of these inclusions when a smaller subgroup is normal in
the larger.

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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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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: atom-ph
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The categories of this paper are: nucl-ex
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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: hep-ex
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The categories of this paper are: adap-org