Spectrum nonincreasing maps on matrices

2012/10/03 by Грегор Долинар, Dolinar, Gregor, Jinchuan Hou +5
Computer Science · Mathematics · #15A04 #15A18 #Advanced Topics in Algebra #FOS: Mathematics #Matrix Theory and Algorithms #Rings and Algebras (math.RA) #advanced mathematical theories

paper · pdf · doi:10.48550/arxiv.1210.0958

openalex publication_date 2012/10/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Maps Φ which do not increase the spectrum on complex matrices in a sense that \Sp(Φ(A)-Φ(B))⊆\Sp(A-B) are classified.

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