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Boolean functions as points on the hypersphere in the Euclidean space

  • Oleg A. Logachev EMAIL logo , Sergey N. Fedorov and Valerii V. Yashchenko
Published/Copyright: April 12, 2019

Abstract

A new approach to the study of algebraic, combinatorial, and cryptographic properties of Boolean functions is proposed. New relations between functions have been revealed by consideration of an injective mapping of the set of Boolean functions onto the sphere in a Euclidean space. Moreover, under this mapping some classes of functions have extremely regular localizations on the sphere. We introduce the concept of curvature of a Boolean function, which characterizes its proximity (in some sense) to maximally nonlinear functions.


Note: Originally published in Diskretnaya Matematika (2018) 30, №1, 39–55 (in Russian).


Acknowledgement

This research was carried out with the financial support of the Russian Foundation for Basic Research (grant no. 16-01-00226-a).

References

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Received: 2018-01-19
Published Online: 2019-04-12
Published in Print: 2019-04-24

© 2019 Walter de Gruyter GmbH, Berlin/Boston

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