18 citations · 39 across the 3 of their papers we have counts for
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math.FA2009★ 3 cited
Polynomially spectrum-preserving maps between commutative Banach algebras
Osamu Hatori, Takeshi Miura, Hiroyuki Takagi
Let and be unital semi-simple commutative Banach algebras. In this paper we study two-variable polynomials which satisfy the following property: a map from onto…
math.FA2009★ 18 cited
Multiplicatively spectrum-preserving and norm-preserving maps between invertible groups of commutative Banach algebras
Osamu Hatori, Takeshi Miura, Hiroyuki Takaggi
Let and be unital semisimple commutative Banach algebras and a map from the invertible group onto . Linearity and multiplicativity of the map are not a…