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Published in:
2009 | OriginalPaper | Chapter
New Commutative Semifields and Their Nuclei
Author : Jürgen Bierbrauer
Published in: Applied Algebra, Algebraic Algorithms and Error-Correcting Codes
Publisher: Springer Berlin Heidelberg
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Commutative semifields in odd characteristic can be equivalently described by planar functions (also known as PN functions). We describe a method to construct a semifield which is canonically associated to a planar function and use it to derive information on the nuclei directly from the planar function. This is used to determine the nuclei of families of new commutative semifields of dimensions 9 and 12 in arbitrary odd characteristic.