We announce the following result: every maximal globally hyperbolic 3-dimensional spacetime with compact Cauchy surface, and with nonpositive constant curvature admits a unique time function whose fibers are constant mean curvature surfaces. We discuss the extension of this result in higher dimensions.
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Politecn Bari, Dipartimento Meccan Matemat & Management, Via E Orabona 4, I-70125 Bari, ItalyPolitecn Bari, Dipartimento Meccan Matemat & Management, Via E Orabona 4, I-70125 Bari, Italy
Bartolo, Rossella
Candela, Anna Maria
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Univ Bari Aldo Moro, Dipartimento Matemat, I-70125 Bari, ItalyPolitecn Bari, Dipartimento Meccan Matemat & Management, Via E Orabona 4, I-70125 Bari, Italy
Candela, Anna Maria
Luis Flores, Jose
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Univ Malaga, Fac Ciencias, Dept Algebra Geometria & Topol, E-29071 Malaga, SpainPolitecn Bari, Dipartimento Meccan Matemat & Management, Via E Orabona 4, I-70125 Bari, Italy
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Univ Nacl Autonoma Mexico, Dept Gravitac & Teoria Campos, Inst Ciencias Nucl, POB 20-126, Mexico City, MexicoUniv Nacl Autonoma Mexico, Dept Gravitac & Teoria Campos, Inst Ciencias Nucl, POB 20-126, Mexico City, Mexico
Juarez-Aubry, Benito A.
Modak, Sujoy K.
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Univ Colima, Fac Ciencias, CUICBAS, Colima 28045, MexicoUniv Nacl Autonoma Mexico, Dept Gravitac & Teoria Campos, Inst Ciencias Nucl, POB 20-126, Mexico City, Mexico