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- M. L. Barberis
- 1997

The purpose of this paper is to classify invariant hypercomplex structures on a 4-dimensional real Lie group G. It is shown that the 4dimensional simply connected Lie groups which admit invariant… (More)

- M. L. Barberis, I. Dotti, G. P. OVANDO
- 2005

It is the aim of this work to study product structures on four dimensional solvable Lie algebras. We determine all possible paracomplex structures and consider the case when one of the subalgebras is… (More)

We study hermitian structures, with respect to the standard neutral metric on the cotangent bundle T ∗G of a 2n-dimensional Lie group G, which are left invariant with respect to the Lie group… (More)

- M. L. Barberis, I. Dotti, Anna Fino
- 2004

In this paper we apply the hyper-Kähler quotient construction to Lie groups with a left invariant hyper-Kähler structure under the action of a closed abelian subgroup by left multiplication. This is… (More)

- M. L. Barberis, Francesca Demichelis, Walter Giaretti, Guido Rolle, Simon Teich-Alasia
- Chirurgia plastica
- 2004

A study on the thermal sensitivity of healthy skin of the hand, of pedicle flaps and of donor areas is reported. The experimental method consists of measuring the increase in temperature after an… (More)

- Simon Teich-Alasia, M. L. Barberis
- Chirurgia plastica
- 2005

The numerous advantages offered by the use of the cross-arm flaps are underlined. These flaps are particularly suitable for the reconstruction of the skin of the fingers, the first interdigital space… (More)

- M. L. Barberis, I. Dotti
- 2003

We study existence of complex structures on semidirect products g ⊕ ρ v where g is a real Lie algebra and ρ is a representation of g on v. Our first examples, the Euclidean algebra e(3) and the… (More)

- M. L. Barberis, Francesca Demichelis, Walter Giaretti, Simon Teich-Alasia
- Chirurgia plastica
- 2004

The importance of the return of sensibility in transplanted skin as a functional necessity for the success of a surgical reconstruction, especially in the hand, has led to many studies to develop a… (More)

- M. L. Barberis
- 2008

Manifolds with special geometric structures play a prominent role in some branches of theoretical physics, such as string theory and supergravity. For instance, it is well known that supersymmetry… (More)

- M. L. Barberis
- 2000

Let g be a hyper-Hermitian metric on a simply connected hypercomplex four-manifold (M,H). We show that when the isometry group I(M, g) contains a subgroup acting simply transitively on M by… (More)

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