activity
20092026
most citedMultiplicatively spectrum-preserving and norm-preserving maps between invertible groups of commutative Banach algebras

18 citations · 27 across the 18 of their papers we have counts for

collaborators
Showing 2018Show all

2 papers · 1 filter

math.FA2018★ 4 cited

2-local isometries on function spaces

Osamu Hatori, Shiho Oi

We study 2-local reflexivity of the set of all surjective isometries between certain function spaces. We do not assume linearity for isometries. We prove that a 2-local isometry in…

math.FA2018

Isometries on Banach algebras of -valued maps

Osamu Hatori

We propose a unified approach to the study of isometries on algebras of vector-valued Lipschitz maps and those of continuously differentiable maps by means of the notion of natural…