Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: U-geometry : SL(5)   Recently Berman and Perry constructed a four-dimensional M-theory effective
action which manifests SL(5) U-duality. Here we propose an underlying
differential geometry of it, under the name `SL(5) U-geometry' which
generalizes the ordinary Riemannian geometry in an SL(5) compatible manner. We
introduce a `semi-covariant' derivative that can be converted into fully
covariant derivatives after anti-symmetrizing or contracting the SL(5) vector
indices appropriately. We also derive fully covariant scalar and Ricci-like
curvatures which constitute the effective action as well as the equation of
motion.

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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: stat
26
The categories of this paper are: bayes-an
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The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
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The categories of this paper are: econ
31
The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat