摘要
在函数Fi(x1,x2,…,xn)(i=1,2,…,n)对xn具有连续二阶偏导数的条件下,应用微分法和数学归纳法,确定了函数方程∑ni=1(-i)i-1[Fi(x1,…,xn-i+1+xn-i+2,…,xn+1)+Fi(x1,…,xn-i+1-xn-i+2,…,xn+1)]-2Fn+1(x1,x2,…,xn)=0的一般解.
Suppose that the functions Fi (x1,x2,...,x,) ( i = 1,2,..., n) have continuous partial derivatives of second order with respect to xn, By applying the differentiation and mathematical induction,the general solution of the functional equation ∑i=1^n(-i)^i-1[Fi(x1,…,xn-i+1+xn-i+2,…xn+1)+Fi(x1,…,xn-i+1-xn-i+2,…,xn+1)]-2Fn+1(x1,x2,…,xn)=0 is determined.
出处
《暨南大学学报(自然科学与医学版)》
CAS
CSCD
北大核心
2007年第5期451-454,共4页
Journal of Jinan University(Natural Science & Medicine Edition)
关键词
函数方程
可微解
偏导数
functional equation
differentiable solution
partial derivative