neliöintegroituvan
Neliöintegroituva refers to a function or a sequence of functions that possesses a finite integral of its square over a given domain. This concept is fundamental in various areas of mathematics, particularly in functional analysis and the study of differential equations.
For a function f defined on a domain D, it is neliöintegroituva if the integral of |f(x)|^2
The set of all neliöintegroituva functions on a given domain forms a Hilbert space, denoted as L^2(D).
In the context of sequences, a sequence of numbers (a_n) is called neliöintegroituva if the sum of