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arXiv · 1503.01560

Local well-posedness of the (4+1)-dimensional Maxwell-Klein-Gordon equation at energy regularity

Sung-Jin Oh·Daniel Tataru
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Abstract

This paper is the first part of a trilogy dedicated to a proof of global well-posedness and scattering of the (4+1)-dimensional mass-less Maxwell-Klein-Gordon equation (MKG) for any finite energy initial data. The main result of the present paper is a large energy local well-posedness theorem for MKG in the global Coulomb gauge, where the lifespan is bounded from below by the energy concentration scale of the data. Hence the proof of global well-posedness is reduced to establishing non-concentration of energy. To deal with non-local features of MKG we develop initial data excision and gluing techniques at critical regularity, which might be of independent interest.

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Sung-Jin Oh, Daniel Tataru. 2015-03-05. Local well-posedness of the (4+1)-dimensional Maxwell-Klein-Gordon equation at energy regularity. https://arxiv.org/abs/1503.01560

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