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On the Covering Radius of the Second Order Reed-Muller Code of Length 128 (1510.08535v1)

Published 29 Oct 2015 in cs.IT and math.IT

Abstract: In 1981, Schatz proved that the covering radius of the binary Reed-Muller code $RM(2,6)$ is 18. For $RM(2,7)$, we only know that its covering radius is between 40 and 44. In this paper, we prove that the covering radius of the binary Reed-Muller code $RM(2,7)$ is at most 42. Moreover, we give a sufficient and necessary condition for Boolean functions of 7-variable to achieve the second-order nonlinearity 42.

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