Let $\Omega = \Omega_1 \times \cdots \times \Omega_n (n > 1)$ be a product of n Brelot harmonic spaces each of which has a bounded potential, and let K be a compact subset of Ω. Then, K is an n-polar ...

A blocking set of a function $f$ is a closed set which does not intersect $f$ but which intersects each continuous function with domain the same as $f$. It is shown ...

In recent years, physicists have been trying to better understand the behavior of individual quantum particles as they move ...