Robert P.
Langlands, Professor Emeritus, School of Mathematics. There are
several central mathematical problems, or complexes of problems,
that every mathematician who is eager to acquire some broad
competence in the subject...
For a topological dynamical systems (T, X) and a fixed $x \in X$
we are interested in the distribution of prime and semi-prime
orbits, i.e. ${T px}p='$ and ${T p1p2 x}p1,p2='$. We are interested
in systems for which the related sequences of...