We give a simple, explicit, sufficient condition for the existence of a sector of minimal growth for second-order regular singular differential operators on graphs. We specifically consider operators with a singular potential of Coulomb type and base our analysis on the theory of elliptic cone operators.
|Original language||English (US)|
|Number of pages||16|
|Journal||Journal of Mathematical Analysis and Applications|
|State||Published - Apr 15 2008|
All Science Journal Classification (ASJC) codes
- Applied Mathematics