e/Refinable function

Information
has gloss	eng: In mathematics, in the area of wavelet analysis, a refinable function is a function which fulfills some kind of self-similarity. A function \varphi is called refinable with respect to the mask h if :\varphi(x)=2\cdot\sum_k=0}^N-1} h_k\cdot\varphi(2\cdot x-k) This condition is called refinement equation, dilation equation or two-scale equation.
lexicalization	eng: refinable function
instance of	e/Wavelet