Presents the results in the value-distribution theory of L-functions with emphasis on the phenomenon of universality. This work aims to prove universality for p... » 

Presents the results in the value-distribution theory of L-functions with emphasis on the phenomenon of universality. This work aims to prove universality for polynomial Euler products. Its approach follows mainly Bagchi's probabilistic method. It also discusses related topics such as almost periodicity, density estimates, and Nevanlinna theory. «