The existence problem of hyperbolic structures on vector bundles.
Bejan, Cornelia-Livia (1993)
Publications de l'Institut Mathématique. Nouvelle Série
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Bejan, Cornelia-Livia (1993)
Publications de l'Institut Mathématique. Nouvelle Série
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Groß, Jürgen (1998)
Bulletin of the Malaysian Mathematical Society. Second Series
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Zbigniew Olszak (2002)
Banach Center Publications
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This survey article presents certain results concerning natural left invariant para-Hermitian structures on twisted (especially, semidirect) products of Lie groups.
Ian Hambleton, Peter Teichner (1997)
Manuscripta mathematica
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Sergio Console, Lorenzo Nicolodi (1999)
Commentationes Mathematicae Universitatis Carolinae
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In this note it is shown that almost Hermitian locally homogeneous manifolds are determined, up to local isometries, by an integer , the covariant derivatives of the curvature tensor up to order and the covariant derivatives of the complex structure up to the second order calculated at some point. An example of a Hermitian locally homogeneous manifold which is not locally isometric to any Hermitian globally homogeneous manifold is given.
Elsa Abbena, Sergio Garbiero, Simon Salamon (2001)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Xiang Zhang, Qing-Wen Wang, Xin Liu (2012)
Open Mathematics
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Let S be a given set consisting of some Hermitian matrices with the same size. We say that a matrix A ∈ S is maximal if A − W is positive semidefinite for every matrix W ∈ S. In this paper, we consider the maximal and minimal inertias and ranks of the Hermitian matrix function f(X,Y) = P − QXQ* − TYT*, where * means the conjugate and transpose of a matrix, P = P*, Q, T are known matrices and for X and Y Hermitian solutions to the consistent matrix equations AX =B and YC = D respectively....
Tekcan, A. (2005)
Acta Mathematica Universitatis Comenianae. New Series
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Andrew Balas (1987)
Mathematische Zeitschrift
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