Abstract
Skew polynomials are a noncommutative generalization of ordinary polynomials that, in recent years, have found applications in coding theory and cryptography. Viewed as functions, skew polynomials have a well-defined evaluation map; however, little is known about skew-polynomial interpolation. In this work, we apply Kötter’s interpolation framework to free modules over skew polynomial rings. As a special case, we introduce a simple interpolation algorithm akin to Newton interpolation for ordinary polynomials.

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The second author was supported by the Swiss National Science Foundation under Grant No. 135934.
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Communicated by P. Charpin.
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Liu, S., Manganiello, F. & Kschischang, F.R. Kötter interpolation in skew polynomial rings. Des. Codes Cryptogr. 72, 593–608 (2014). https://doi.org/10.1007/s10623-012-9784-1
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DOI: https://doi.org/10.1007/s10623-012-9784-1