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Journal Articles Novi Sad Journal of Mathematics Year : 2014

Additive decomposition schemes for polynomial functions over fields

Abstract

The authors’ previous results on the arity gap of functions of several variables are refined by considering polynomial functions over arbitrary fields.We explicitly describe the polynomial functions with arity gap at least 3, as well as the polynomial functions with arity gap equal to 2 for fields ofcharacteristic 0 or 2. These descriptions are given in the form of decomposition schemes of polynomial functions. Similar descriptions are givenfor arbitrary finite fields. However, we show that these descriptions do not extend to infinite fields of odd characteristic.
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Dates and versions

hal-01090554 , version 1 (18-02-2017)

Identifiers

  • HAL Id : hal-01090554 , version 1

Cite

Miguel Couceiro, Erkko Lehtonen, Tamas Waldhauser. Additive decomposition schemes for polynomial functions over fields. Novi Sad Journal of Mathematics, 2014, 44 (2), pp.89-105. ⟨hal-01090554⟩
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