Аннотация:QED processes at electron–positron colliders are considerd. We present
differential cross–sections for large–angle Bhabha scattering, annihilation into muons and
photons. Radiative corrections in the first order are taken into account exactly. Leading
logarithmic contributions are calculated in all orders by means of the structure–function
method. An accuracy of the calculation can be estimated about 0.2%.