T. Miura

activity

20082022

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

18 citations · 39 across the 7 of their papers we have counts for

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Showing 2021Show all

2 papers · 1 filter

math.FA2021

Exploring new solutions to Tingley's problem for function algebras

María Cueto-Avellaneda, Daisuke Hirota, Takeshi Miura +1

In this note we present two new positive answers to Tingley's problem in certain subspaces of function algebras. In the first result we prove that every surjective isometry between…

math.OA2021

Surjective isometries between unitary sets of unital JB $^{*}$ -algebras

María Cueto-Avellaneda, Yuta Enami, Daisuke Hirota +2

This paper is, in a first stage, devoted to establish a topological--algebraic characterization of the principal component, $U^{0} (M)$ , of the set of unitary elements, $\m…

Exploring new solutions to Tingley's problem for function algebras

Surjective isometries between unitary sets of unital JB∗-algebras

Surjective isometries between unitary sets of unital JB $^{*}$ -algebras