{ "id": "0906.0711", "version": "v2", "published": "2009-06-03T13:32:58.000Z", "updated": "2009-07-30T09:24:23.000Z", "title": "An Algebraic Framework for Discrete Tomography: Revealing the Structure of Dependencies", "authors": [ "Arjen Stolk", "K. Joost Batenburg" ], "comment": "20 pages, 1 figure, updated to reflect reader input", "categories": [ "math.CO" ], "abstract": "Discrete tomography is concerned with the reconstruction of images that are defined on a discrete set of lattice points from their projections in several directions. The range of values that can be assigned to each lattice point is typically a small discrete set. In this paper we present a framework for studying these problems from an algebraic perspective, based on Ring Theory and Commutative Algebra. A principal advantage of this abstract setting is that a vast body of existing theory becomes accessible for solving Discrete Tomography problems. We provide proofs of several new results on the structure of dependencies between projections, including a discrete analogon of the well-known Helgason-Ludwig consistency conditions from continuous tomography.", "revisions": [ { "version": "v2", "updated": "2009-07-30T09:24:23.000Z" } ], "analyses": { "subjects": [ "94A12", "94C10", "11H71" ], "keywords": [ "algebraic framework", "dependencies", "lattice point", "well-known helgason-ludwig consistency conditions", "small discrete set" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0906.0711S" } } }