Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Trace Theorem For Sobolev Spaces On The Sierpinski Gasket   We give a discrete characterization of the trace of a class of Sobolev spaces
on the Sierpinski gasket to the bottom line. This includes the L2 domain of the
Laplacian as a special case. In addition, for Sobolev spaces of low orders,
including the domain of the Dirichlet form, the trace spaces are Besov spaces
on the line.

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The categories of this paper are: cond-mat
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The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: cs
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The categories of this paper are: ao-sci
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The categories of this paper are: chem-ph
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The categories of this paper are: nlin
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an