LORENTZIAN SYMMETRIC THREE-SPACES AND THE CLASSIFICATION OF THEIR PARALLEL SURFACES

Author:

CALVARUSO G.1,VAN DER VEKEN J.2

Affiliation:

1. Università del Salento, Dipartimento di Matematica "E. De Giorgi", Provinciale Lecce–Arnesano, 73100 Lecce, Italy

2. Katholieke Universiteit Leuven, Departement Wiskunde, Celestijnenlaan 200 B, B-3001 Leuven, Belgium

Abstract

We describe a global model for Lorentzian symmetric three-spaces admitting a parallel null vector field, and classify completely the surfaces with parallel second fundamental form in all Lorentzian symmetric three-spaces. Interesting differences arise with respect to the Riemannian case studied in [2]. Our results complete the classification of parallel surfaces in all three-dimensional Lorentzian homogeneous spaces.

Publisher

World Scientific Pub Co Pte Ltd

Subject

General Mathematics

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