Abstract
In this paper we analyze the Feynman wave equation on Lorentzian scattering spaces. We prove that the Feynman propagator exists as a map between certain Banach spaces defined by decay and microlocal Sobolev regularity properties. We go on to show that certain nonlinear wave equations arising in QFT are well-posed for small data in the Feynman setting.
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Communicated by P. T. Chruściel
A. Vasy gratefully acknowledges partial support from the NSF under Grant number DMS-1068742 and DMS-1361432.
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Gell-Redman, J., Haber, N. & Vasy, A. The Feynman Propagator on Perturbations of Minkowski Space. Commun. Math. Phys. 342, 333–384 (2016). https://doi.org/10.1007/s00220-015-2520-8
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DOI: https://doi.org/10.1007/s00220-015-2520-8