{ "id": "math-ph/0003043", "version": "v1", "published": "2000-03-29T16:52:25.000Z", "updated": "2000-03-29T16:52:25.000Z", "title": "On the Law of Addition of Random Matrices", "authors": [ "L. Pastur", "V. Vasilchuk" ], "comment": "41 pages, submitted to Commun. Math. Phys", "doi": "10.1007/s002200000264", "categories": [ "math-ph", "math.MP" ], "abstract": "Normalized eigenvalue counting measure of the sum of two Hermitian (or real symmetric) matrices $A_{n}$ and $B_{n}$ rotated independently with respect to each other by the random unitary (or orthogonal) Haar distributed matrix $U_{n}$ (i.e. $A_{n}+U_{n}^{\\ast}B_{n}U_{n}$) is studied in the limit of large matrix order $n$. Convergence in probability to a limiting nonrandom measure is established. A functional equation for the Stieltjes transform of the limiting measure in terms of limiting eigenvalue measures of $A_{n}$ and $B_{n}$ is obtained and studied. Keywords: random matrices, eigenvalue distribution", "revisions": [ { "version": "v1", "updated": "2000-03-29T16:52:25.000Z" } ], "analyses": { "subjects": [ "11C20", "60B12", "60G57" ], "keywords": [ "random matrices", "large matrix order", "eigenvalue distribution", "limiting eigenvalue measures", "stieltjes transform" ], "tags": [ "journal article" ], "publication": { "publisher": "Springer", "journal": "Communications in Mathematical Physics", "year": 2000, "volume": 214, "number": 2, "pages": 249 }, "note": { "typesetting": "TeX", "pages": 41, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2000CMaPh.214..249P" } } }