Wiktionary英語版

出典：Wiktionary

bent function

語源

So called because they are as different as possible from all linear functions (the simplest または "straight-line" functions) and from all affine functions (which preserve parallel lines).

名詞

bent function (複数形 bent functions)

  1. (combinatorics) A Boolean function whose Walsh transform has constant absolute value.
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ウィキペディア英語版

出典：Wikipedia

Bent function

出典:『Wikipedia』 (2011/03/27 16:20 UTC 版)

英語による解説

ウィキペディア英語版からの引用
引用

In the mathematical field of combinatorics, a bent function is a special type of Boolean function. Defined and named in the 1960s by Oscar Rothaus in research not published until 1976, bent functions are so called because they are as different as possible from all linear and affine functions. They have been extensively studied for their applications in cryptography, but have also been applied to spread spectrum, coding theory, and combinatorial design. The definition can be extended in several ways, leading to different classes of generalized bent functions that share many of the useful properties of the original.

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