Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Duality Products of Multivectors and Multiforms, and Extensors   In this paper we study in details the properties of the duality product of
multivectors and multiforms (used in the definition of the hyperbolic Clifford
algebra of multivefors) and introduce the theory of the k multivector and l
multiform variables multivector (or multiform) extensors over V studying their
properties with considerable detail.

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The categories of this paper are: alg-geom
3
The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: cs
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th