{ "id": "math-ph/0502040", "version": "v2", "published": "2005-02-16T09:10:08.000Z", "updated": "2006-07-10T17:07:59.000Z", "title": "On inverse scattering for the multidimensional relativistic Newton equation at high energies", "authors": [ "Alexandre Jollivet" ], "journal": "Journal of Mathematical Physics 47, 6 (2006) 062902", "doi": "10.1063/1.2206690", "categories": [ "math-ph", "math.MP" ], "abstract": "Consider the Newton equation in the relativistic case (that is the Newton-Einstein equation) $$\\eqalign{\\dot p = F(x),& F(x)=-\\nabla V(x),\\cr p={\\dot x \\over \\sqrt{1-{|\\dot x|^2 \\over c^2}}},& \\dot p={dp\\over dt}, \\dot x={dx\\over dt}, x\\in C^1(\\R,\\R^d),}\\eqno{(*)}$$ $${\\rm where\\}V \\in C^2(\\R^d,\\R), |\\pa^j\\_x V(x)| \\le \\beta\\_{|j|}(1+|x|)^{-(\\alpha+|j|)}$$ for $|j| \\le 2$ and some $\\alpha > 1$. We give estimates and asymptotics for scattering solutions and scattering data for the equation $(*)$ for the case of small angle scattering. We show that at high energies the velocity valued component of the scattering operator uniquely determines the X-ray transform $PF.$ Applying results on inversion of the X-ray transform $P$ we obtain that for $d\\ge 2$ the velocity valued component of the scattering operator at high energies uniquely determines $F$. In addition we show that our high energy asymptotics found for the configuration valued component of the scattering operator doesn't determine uniquely $F$. The results of the present work were obtained in the process of generalizing some results of Novikov [R.G. Novikov, Small angle scattering and X-ray transform in classical mechanics, Ark. Mat. 37, pp. 141-169 (1999)] to the relativistic case.", "revisions": [ { "version": "v2", "updated": "2006-07-10T17:07:59.000Z" } ], "analyses": { "subjects": [ "78A46", "65R32", "45Q05", "34A55" ], "keywords": [ "multidimensional relativistic newton equation", "high energy", "x-ray transform", "inverse scattering", "scattering operator" ], "tags": [ "journal article" ], "publication": { "publisher": "AIP", "journal": "J. Math. Phys." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }