Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Wu and Schaback's Error Bound   In this paper we point out that the commonly used error bound in the theory
of radial basis functions contains an important error. It doesn't apply for
derivatives. Thus one should be very careful when dealing with differential
equations.

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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio