Boundary values of harmonic functions and modulus of continuity (part II)

摘要

We will present a proof of part (b) of our main theorem in a previouspaper, which is Theorem 1.4 below. It is about a necessary and su cientcondition for a harmonic function on the open unit disk to be uniquelyrepresented as the Poisson integral of a Riemann-integrable function onthe unit circle in terms of modulus of continuity.