Spectral Theory

[Amy Z]

--- In HPFGU-OTChatter at y..., "Pigwidgeon" <simon at h...> wrote:

> I think that I should instead get back 
> to the wonders of Analytic Topology, followed a little later in the 
> afternoon with Spectral Theory.

Is that the area of knowledge that deals with questions such 
as "what's the difference between a ghost and a poltergeist," "why do 
ghosts haunt the places they do," "who is the Widow and why is Nick's 
party such an event that she'd come all the way from Kent," and "why 
are the Shrieking Shack's putative ghosts scary but the Hogwarts 
ghosts aren't"?

Amy Z