Perturbation determinants for singular perturbations
- Malamud, Mark
- Neidhardt, Hagen
2010 Mathematics Subject Classification
- 47B25 34B20 34B24
- symmetric operators, boundary triplets, almost solvable extensions, perturbation determinants, second order elliptic operators
For proper extensions of a densely defined closed symmetric operator with trace class resolvent difference the perturbation determinant is studied in the framework of boundary triplet approach to extension theory.
- Russ. J. Math. Phys., 21 (2014) pp. 55--98.