Geodesic
On some open questions about APN functions
Prikladnaya Diskretnaya Matematika. Supplement, no. 7 (2014), pp. 11-13

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Some open questions in the theory of APN functions are stated. Few results obtained in this direction are listed. For the sum of two APN functions of dimension 2, a necessary and sufficient condition to be an APN function is proved.
Keywords: vectorial Boolean function, APN function. 
@article{PDMA_2014_7_a2,
     author = {V. A. Vitkup},
     title = {On some open questions about {APN} functions},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {11--13},
     publisher = {mathdoc},
     number = {7},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2014_7_a2/}
}
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V. A. Vitkup. On some open questions about APN functions. Prikladnaya Diskretnaya Matematika. Supplement, no. 7 (2014), pp. 11-13. http://geodesic.mathdoc.fr/item/PDMA_2014_7_a2/