Legendre function

Japanese: ルジャンドル関数 - ルジャンドルかんすう(英語表記)Legendre function
Legendre function
When n is 0 or a positive integer, a second-order linear differential equation is called a Legendre differential equation, and its solution is generally called the nth -order Legendre function. When m is a positive integer, the ordinary differential equation obtained by expanding (1) is called a Legendre associated differential equation, and its solution is called an associated Legendre function. (Each of the differential equations and their respective solution functions above can also be defined with n and m as any complex number, but in this article, n and m are integers, n ≧ 0, m > 0.)

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
nを0または正の整数とするとき,2階の線形微分方程式,をルジャンドルの微分方程式といい,その解を一般にn次のルジャンドル関数という。また,mを正の整数とするとき,(1)を拡張して得られる常微分方程式,をルジャンドルの陪微分方程式といい,その解をルジャンドルの陪関数という(上の各微分方程式およびそれぞれの解となる関数は,nmを任意の複素数としても定義されているが,本項目では,nmは整数でn≧0,m>0として述べる)。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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