A Particular Class of Non-Fredholm Operators L and Their Generalized Witten Index

  • Fritz Gesztesy
  • Marcus Waurick
Part of the Lecture Notes in Mathematics book series (LNM, volume 2157)


In our final chapter we provide a glimpse at future directions that aim at weakening the Fredholm hypothesis on L. By introducing a generalized (resolvent regularized) Witten index, we derive the analog of the Callias index formula for a particular class of non-Fredholm operators L.


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Fritz Gesztesy
    • 1
  • Marcus Waurick
    • 2
  1. 1.Dept of MathematicsUniversity of MissouriColumbiaUSA
  2. 2.Institut für AnalysisTU DresdenDresdenGermany

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