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In mathematics (and, in particular, functional analysis) convolution is a mathematical operation on two functions (f and g) to produce a third function that expresses how the shape of one is modified by the other.The term convolution refers to both the result function and to the process of computing it. Convolution is similar to cross-correlation.For discrete, real-valued functions, they ...
The number π (/ p aɪ /) is a mathematical constant.Originally defined as the ratio of a circle's circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics.It is approximately equal to 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out ...
総目次「書評」 Volume 58, No. 1 Index • Book Review J. Hong and S.-J. Kang: Introduction to Quantum Groups and Crystal Bases(Grad. Stud. Math., 42) Reviewer: 中島俊樹, 58(1) pp. 102- 大森英樹：数学のなかの物理学 -- 幾何学的量子論へむかって
畳み込み（たたみこみ、英: convolution ）とは関数 g を平行移動しながら関数 f に重ね足し合わせる二項演算である。 畳み込み積分、合成積、重畳積分、あるいは英語に倣いコンボリューションとも呼ばれる。


















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