Noncommutative Geometry and Quantum Physics
Vietri sul Mare, August 31 - September 5, 2009
|
|
|
| Speaker: |
Giuseppe Ruzzi, Univ. Roma "Tor Vergata" |
| Title: |
Net cohomology and local charges |
| Abstract: |
We discuss a recent result on Roberts' cohomology.
We show that the observable net on a globally hyperbolic spacetime,
has charged superselection sectors affected by the topology of the spacetime.
|
|
 |
 |
G |
ruppo di |
R |
icerca |
E |
uropeo |
F |
ranco- |
I |
taliano in |
GE |
ometria |
N |
on |
CO |
mmutativa |
| roupement de |
echerche |
uropéen |
ranco |
talien en |
ométrie |
on |
mmutative |
|