c*-algebras 1finite corank 1jordan *-homomorphisms 1linear isometries 1matrix algebras 1order embeddings 1
From the 1 of 3 linked papers with an AI index.
3 papers
math.OA2026
Isometries between C-algebras with finite corank
Michiya Mori
The paper characterizes linear isometries of finite corank between arbitrary unital C*-algebras via Jordan *-homomorphisms and finite‑dimensional remainder terms, and also treats l…
math-ph2025
Optimal version of the fundamental theorem of chronogeometry
Michiya Mori, Peter Å emrl
We study lightlikeness preserving mappings from the -dimensional Minkowski spacetime to itself under no additional regularity assumptions like continuity, surjec…
math.OA2024
Determination of the distance from a projection to nilpotents
Masaki Izumi, Michiya Mori
In this note, we study the distance from an arbitrary nonzero projection to the set of nilpotents in a factor equipped with a normal faithful tracial state .…