Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Riemann-Roch type theorem for twisted fibrations of moment graphs   In the present paper we extend the Riemann-Roch formalism to structure
algebras of moment graphs. We introduce and study the Chern character and
pushforwards for twisted fibrations of moment graphs. We prove an analogue of
the Riemann-Roch theorem for moment graphs. As an application, we obtain the
Riemann-Roch type theorem for equivariant $K$-theory of some Kac-Moody flag
varieties.

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The categories of this paper are: cmp-lg
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin