{ "id": "1309.6009", "version": "v1", "published": "2013-09-23T23:35:47.000Z", "updated": "2013-09-23T23:35:47.000Z", "title": "Selections and their Absolutely Continuous Invariant Measures", "authors": [ "A. Boyarsky", "P. Góra", "Zh. Li" ], "categories": [ "math.DS" ], "abstract": "Let $I=[0,1]$ and consider disjoint closed regions $G_{1},....,G_{n}$ in $% I\\times I$ and subintervals $I_{1},......,I_{n},$ such that $G_{i}$ projects onto $I_{i.}$ We define the lower and upper maps $\\tau_{1},$ $\\tau_{2}$ by the lower and upper boundaries of $G_{i},i=1,....,n,$ respectively. We assume $\\tau_{1}$, $\\tau_{2}$ to be piecewise monotonic and preserving continuous invariant measures $\\mu_{1}$ and $\\mu_{2}$, respectively. Let $% F^{(1)}$ and $F^{(2)}$ be the distribution functions of $\\mu_{1}$ and $\\mu_{2}.$ The main results shows that for any convex combination $F$ of $% F^{(1)} $ and $F^{(2)}$ we can find a map $\\eta $ with values between the graphs of $\\tau_{1}$ and $\\tau_{2}$ (that is, a selection) such that $F$ is the $\\eta $-invariant distribution function. Examples are presented. We also study the relationship of the dynamics of multi-valued maps to random maps.", "revisions": [ { "version": "v1", "updated": "2013-09-23T23:35:47.000Z" } ], "analyses": { "subjects": [ "37A05" ], "keywords": [ "absolutely continuous invariant measures", "invariant distribution function", "disjoint closed regions", "random maps", "upper maps" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1309.6009B" } } }