Polar bears, the iconic creatures of the Arctic, have a role that extends beyond their status as apex predators. They are ...

Polar bears are more than hunters as their leftovers feed many Arctic animals, forming a vital food web threatened by melting ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...

Kesten (1969) gives necessary and sufficient conditions for single points to be polar for Lévy processes. In this article we investigate when single points are polar for processes obtained by adding ...