Current topics in astrofundamental physics : primordial cosmology : [proceedings of the NATO Advanced Study Institute on Current Topics in Astrofundamental Physics: Primordial Cosmology Erice Italy 4 15 September 1997] The present book provides an up to date fundamental and deep understanding of current progress and problems in the study of the early universe cosmic microwave background radiation large scale structure the dark matter problem. The emphasis is on the mutual impact of fundamental physics and cosmology at both theoretical and experiments observational levels. The very nature of the subject area calls for the study of different aspects using different approaches and points of view. However the book provides a well defined programme and a global unifying view bringing together experimentalists and theoreticians physicists astrophysicists and astronomers from a variety of backgrounds. The lectures range from a motivation and pedagogical introduction for students and those not directly working in the field to the latest developments and the most recent results