Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Bloch-Wigner complex for SL_2   We introduce a refinement of the Bloch-Wigner complex of a field F. This is a
complex of modules over the multiplicative group of the field. Instead of
computing K_2 and indecomposable K_3 - as the classical Bloch-Wigner complex
does - it calculates the second and third integral homology of SL_2 of the
field. On passing to coinvariants for the action of the multiplicative group we
recover the classical Bloch-Wigner complex. The case of finite fields is
included throughout the article.

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The categories of this paper are: math-ph
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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: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys