東京確率論セミナー

過去の記録 ~05/02次回の予定今後の予定 05/03~

開催情報 月曜日 16:00~17:30 数理科学研究科棟(駒場) 126号室
担当者 佐々田槙子、中島秀太(明治大学)、星野壮登(東京科学大学)
セミナーURL https://sites.google.com/view/tokyo-probability-seminar23/

2024年12月16日(月)

16:00-17:30   数理科学研究科棟(駒場) 126号室
15:15〜 2階のコモンルームでTea timeを行います。ぜひこちらにもご参加ください。
金澤 秀 氏 (京都大学)
Central limit theorem for linear eigenvalue statistics of the adjacency matrices of random simplicial complexes
[ 講演概要 ]
We consider the (higher-dimensional) adjacency matrix of the Linial-Meshulam complex model, which is a higher-dimensional generalization of the Erdős-Rényi random graph model. Recently, Knowles and Rosenthal proved that the empirical spectral distribution
of the adjacency matrix is asymptotically given by Wigner's semicircle law in a diluted regime. In this talk, I will present a central limit theorem for the linear eigenvalue statistics for test functions of polynomial growth that is of class C2 on a closed
interval. The proof is based on higher-dimensional combinatorial enumerations and concentration properties of random symmetric matrices. Furthermore, when the test function is a polynomial function, we obtain the explicit formula for the variance of the limiting
Gaussian distribution. This is joint work with Khanh Duy Trinh (Waseda University).