Abstract:
It is well known that if the Fourier–Haar coefficients have a certain order or if a certain series composed of the Fourier–Haar coefficients of a function f(x)∈C(0,1) converges, then the function has a certain form. In the present paper, we prove that not only the Fourier–Haar coefficients, but also the difference of these coefficients possess these properties.
Keywords:
orthonormal Haar system, Fourier–Haar coefficient, continuous function, Abel transformation, binary irrational point.