{ "id": "1311.3199", "version": "v1", "published": "2013-11-13T16:38:50.000Z", "updated": "2013-11-13T16:38:50.000Z", "title": "Invariant quadrics and orbits for a family of rational systems of difference equations", "authors": [ "Ignacio Bajo" ], "categories": [ "math.DS" ], "abstract": "We study the existence of invariant quadrics for a class of systems of difference equations in ${\\mathbb R}^n$ defined by linear fractionals sharing denominator. Such systems can be described in terms of some square matrix $A$ and we prove that there is a correspondence between non-degenerate invariant quadrics and solutions to a certain matrix equation involving $A$. We show that if $A$ is semisimple and the corresponding system admits non-degenerate quadrics, then every orbit of the dynamical system is contained either in an invariant affine variety or in an invariant quadric.", "revisions": [ { "version": "v1", "updated": "2013-11-13T16:38:50.000Z" } ], "analyses": { "keywords": [ "difference equations", "rational systems", "corresponding system admits non-degenerate quadrics", "non-degenerate invariant quadrics", "linear fractionals sharing denominator" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1311.3199B" } } }