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Schrödinger semigroups

✍ Scribed by Simon, Barry


Book ID
115506413
Publisher
American Mathematical Society
Year
1982
Tongue
English
Weight
54 KB
Volume
7
Category
Article
ISSN
0273-0979

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Compactness of Schrödinger semigroups
✍ Daniel Lenz; Peter Stollmann; Daniel Wingert 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 150 KB

## Abstract This paper is concerned with emptyness of the essential spectrum, or equivalently compactness of the semigroup, for perturbations of self‐adjoint operators that are bounded below (on an __L__^2^‐space). For perturbations by a (nonnegative) potential we obtain a simple criterion for com