Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Zygmund's type inequality to the polar derivative of a polynomial   In this paper we improve a result recently proved by Irshad et al. [On the
Inequalities Concerning to the Polar Derivative of a Polynomial with Restricted
Zeroes, Thai Journal of Mathematics, 2014 (Article in Press)] and also extend
Zygmund's inequality to the polar derivative of a polynomial.

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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph