{"title":"Generalized Diagonals in Positive Semi-Definite Matrices","authors":"Robert Angarone, Daniel Soskin","doi":"arxiv-2409.06907","DOIUrl":null,"url":null,"abstract":"We describe all inequalities among generalized diagonals in positive\nsemi-definite matrices. These turn out to be governed by a simple partial order\non the symmetric group. This provides an analogue of results of Drake, Gerrish,\nand Skandera on inequalities among generalized diagonals in totally nonnegative\nmatrices.","PeriodicalId":501407,"journal":{"name":"arXiv - MATH - Combinatorics","volume":"206 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - MATH - Combinatorics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.06907","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We describe all inequalities among generalized diagonals in positive
semi-definite matrices. These turn out to be governed by a simple partial order
on the symmetric group. This provides an analogue of results of Drake, Gerrish,
and Skandera on inequalities among generalized diagonals in totally nonnegative
matrices.