... to the concept of padic numbers and to deep theories in the realm of algebraic geometry; see, for example, Borevich and Shafarevich, Number theory (Academic Press, London, 1966 ), and Weil, ... above then one of the numbers * r) or * l/q is a member. Further, each element of the set has the form u + odd, where u, o are either integers, or, in the case d = 1 (mod 4 ), possibly ... delivered by me in recent times. It has been prepared on the suggestion and with the encouragement of the University Press, The subject has a long and distinguished history, and indeed the...