Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gr\"uss and Gr\"uss-Voronovskaya-type estimates for some Bernstein-type
  polynomials of real and complex variables   The first aim of this paper is to prove a Gr\"uss-Voronovskaya estimate for
Bernstein and for a class of Bernstein-Durrmeyer polynomials on $[0, 1]$. Then,
Gr\"uss and Gr\"uss-Voronovskaya estimates for their corresponding operators of
complex variable on compact disks are obtained. Finally, the results are
extended to Bernstein-Faber polynomials attached to compact sets in the complex
plane.

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The categories of this paper are: hep-th
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The categories of this paper are: physics
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
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The categories of this paper are: supr-con
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int