{ "id": "1312.2382", "version": "v1", "published": "2013-12-09T11:12:23.000Z", "updated": "2013-12-09T11:12:23.000Z", "title": "Bridges and random truncations of random matrices", "authors": [ "Vincent Beffara", "Catherine Donati-Martin", "Alain Rouault" ], "comment": "This paper has the same purpose as arXiv:1302.6539v1 from the second and third-named authors, but the method of proof is drastically different since now we use the results of arXiv:1007.1366v4 and a subordination", "categories": [ "math.PR" ], "abstract": "We continue to study the squared Frobenius norm of a submatrix of a $n \\times n$ random unitary matrix. When the choice of the submatrix is deterministic and its size is $[ns] \\times [nt]$, we proved in a previous paper that, after centering and without any rescaling, the two-parameter process converges in distribution to a bivariate Brownian bridge. Here, we consider Bernoulli independent choices of rows and columns with respective parameters $s$ and $t$. We prove by subordination that after centering and rescaling by $n^{-1/2}$, the process converges to another Gaussian process.", "revisions": [ { "version": "v1", "updated": "2013-12-09T11:12:23.000Z" } ], "analyses": { "subjects": [ "15B52", "60F17", "60J65" ], "keywords": [ "random matrices", "random truncations", "bivariate brownian bridge", "bernoulli independent choices", "two-parameter process converges" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1312.2382B" } } }