Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-20T14:24:10.697Z Has data issue: false hasContentIssue false

On the trace of the difference of Schrödinger heat semigroups

Published online by Cambridge University Press:  14 November 2011

M. van den Berg
Affiliation:
Department of Mathematics, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS

Synopsis

We obtain upper and lower bounds for tr (e−th−e), where H = −Δ + V is a Schrödinger operator on L2 (ℝm), and ℝ is the Laplace operator for ℝm. The bounds are obtained for a class of negative valued Borel measurable potentials with compact support and in L∞(ℝm).

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Simon, B.. Functional integration and quantum physics (New York: Academic Press, 1979).Google Scholar
2Deift, P. and Simon, B.. On the decoupling of finite singularities from the question of asymptotic completeness in the two-body quantum systems. J. Funct. Anal. 23 (1976), 218238.Google Scholar
3Lieb, E. H.. Calculation of exchange second virial coefficient of a hard-sphere gas by path integrals. J. Math. Phys. 8 (1967), 4352.Google Scholar
4Penrose, M., Penrose, O., Stell, G. and Pemantle, R.. Quantum mechanical sticky spheres (preprint, 1990).Google Scholar
5Demuth, M. and van Casteren, J. A.. On spectral theory of self-adjoint Feller generators. Rev. Math. Phys. 1 (1989), 325414.Google Scholar
6van, J. A. Casteren and Demuth, M.. On differences of heat semigroups. Ann. Sci. Univ. Blaise Pascal (Clermont-Ferrand II) (to appear).Google Scholar
7Kac, M.. Probability and related topics in physical sciences (Providence, R. I.: American Mathematical Society, 1984).Google Scholar
8Ray, D. B.. On spectra of second-order differential operators. Trans. Amer. Math. Soc. 77 (1954), 299321.Google Scholar
9van den Berg, M.. Bounds on Green's functions of second-order differential equations. J. Math. Phys. 22 (1981), 24522455.Google Scholar
10Simon, B.. Schrödinger semigroups. Bull. Amer. Math. Soc. 7 (1982), 447526.Google Scholar
11Yosida, K.. Functional Analysis (Berlin: Springer-Verlag, 1980).Google Scholar