Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remarks on 2-dimensional HQFT's   We introduce and study algebraic structures underlying 2-dimensional Homotopy
Quantum Field Theories (HQFTs) with arbitrary target spaces. These algebraic
structures are formalized in the notion of a twisted Frobenius algebra. Our
work generalizes results of Brightwell, Turner, and the second author on
2-dimensional HQFTs with simply-connected or aspherical targets.

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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
1
The categories of this paper are: cs
3
The categories of this paper are: physics
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The categories of this paper are: cmp-lg