Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Guillemin Transform and Toeplitz Representations for Operators on
  Singular Manifolds   An approach to the construction of index formulas for elliptic operators on
singular manifolds is suggested on the basis of K-theory of algebras and cyclic
cohomology. The equivalence of Toeplitz and pseudodifferential quantizations,
well known in the case of smooth closed manifolds, is extended to the case of
manifolds with conical singularities. We describe a general construction that
permits one, for a given Toeplitz quantization of a C^*-algebra, to obtain a
new equivalent Toeplitz quantization provided that a resolution of the
projection determining the original quantization is given.

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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: atom-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: chem-ph