Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hecke Operators on Stable Cohomology   We prove that the completed cohomology groups of SL_N(Z) in fixed degree
stabilize as N goes to infinity. We also prove that the action of Hecke
operators on stable cohomology is trivial, in a precisely defined sense.

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The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
3
The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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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: cs
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The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex