WIAS Preprint No. 1813, (2013)

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.

Appeared in

  • Russ. J. Math. Phys., 21 (2014) pp. 55--98.

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