Linear operators preserving strong majorization of (0,1)-matrices

Alexander Guterman, Pavel Shteyner

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We obtain a complete characterization of linear operators that preserve strong majorization on (0,1)-matrices. To do this we introduce a new matrix invariant of combinatorial nature. We call this invariant an intersection index of a matrix and develop a method to characterize the matrix maps based on the analysis of its properties.

Original languageEnglish
Pages (from-to)116-150
Number of pages35
JournalLinear Algebra and Its Applications
Volume658
DOIs
StatePublished - 1 Feb 2023

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Inc.

Keywords

  • Linear preservers
  • Matrix majorization
  • Vector majorization

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