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Where to find the image of a derivation

100%

Mathieu M.

Banach Center Publications

1994

tom 30

nr 1

237-249

With this paper, we intend to provide an overview of some recent work on a problem on unbounded derivations of Banach algebras that still defies solution, the non-commutative Singer-Wermer conjecture. In particular, we discuss several global as well as local properties of derivations entailing quasinilpotency in the image.

Spectral isometries

100%

Mathieu M.

Banach Center Publications

2005

tom 67

nr 1

265-269

In this survey, we summarise some of the recent progress on the structure of spectral isometries between C*-algebras.

The continuity of Lie homomorphisms

63%

Aupetit B., Mathieu M.

Studia Mathematica

2000

tom 138

nr 2

193-199

We prove that the separating space of a Lie homomorphism from a Banach algebra onto a Banach algebra is contained in the centre modulo the radical.

Ograniczanie wyników

2 Banach Center Publications

1 Studia Mathematica

3 Mathieu M.

1 Aupetit B.

1 2005

1 2000

1 1994

Wyniki wyszukiwania

Where to find the image of a derivation

Spectral isometries

The continuity of Lie homomorphisms