Abstract
We give trace norm estimates for products of integral operators and for diffusion semigroups. These are applied to differences of heat semigroups. A natural example of an integral operator with finite trace which is not trace class is given.
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Demuth, M., Stollmann, P., Stolz, G. et al. Trace norm estimates for products of integral operators and diffusion semigroups. Integr equ oper theory 23, 145–153 (1995). https://doi.org/10.1007/BF01197534
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DOI: https://doi.org/10.1007/BF01197534