On curvatures of linear frame bundles with naturally lifted metrics.
Kowalski, O., Sekizawa, M. (2005)
Rendiconti del Seminario Matematico
Similarity:
Kowalski, O., Sekizawa, M. (2005)
Rendiconti del Seminario Matematico
Similarity:
Kamil Niedziałomski (2012)
Archivum Mathematicum
Similarity:
Let be a Riemannian manifold, its frame bundle. We construct new examples of Riemannian metrics, which are obtained from Riemannian metrics on the tangent bundle . We compute the Levi–Civita connection and curvatures of these metrics.
Mariusz Plaszczyk (2015)
Annales UMCS, Mathematica
Similarity:
If (M,g) is a Riemannian manifold then there is the well-known base preserving vector bundle isomorphism TM → T* M given by v → g(v,−) between the tangent TM and the cotangent T* M bundles of M. In the present note first we generalize this isomorphism to the one JrTM → JrTM between the r-th order prolongation JrTM of tangent TM and the r-th order prolongation JrT M of cotangent TM bundles of M. Further we describe all base preserving vector bundle maps DM(g) : JrTM → JrT* M depending...
Mariusz Plaszczyk (2015)
Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica
Similarity:
If (M, g) is a Riemannian manifold then there is the well-known base preserving vector bundle isomorphism TM → T*M given by v → g(v, –) between the tangent TM and the cotangent T*M bundles of M. In the present note first we generalize this isomorphism to the one JrTM → JrT*M between the r-th order prolongation JrTM of tangent TM and the r-th order prolongation JrT*M of cotangent T*M bundles of M. Further we describe all base preserving vector bundle maps DM(g) : JrTM → JrT*M depending...
Oldřich Kowalski, Masami Sekizawa (2008)
Archivum Mathematicum
Similarity:
In this paper we prove that each -natural metric on a linear frame bundle over a Riemannian manifold is invariant with respect to a lifted map of a (local) isometry of the base manifold. Then we define -natural metrics on the orthonormal frame bundle and we prove the same invariance result as above for . Hence we see that, over a space of constant sectional curvature, the bundle with an arbitrary -natural metric is locally homogeneous.
Atsumi Ohara, Shun-ichi Amari (1994)
Kybernetika
Similarity:
Maria Robaszewska (2016)
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
Similarity:
For two-dimensional manifold M with locally symmetric connection ∇ and with ∇-parallel volume element vol one can construct a flat connection on the vector bundle TM ⊕ E, where E is a trivial bundle. The metrizable case, when M is a Riemannian manifold of constant curvature, together with its higher dimension generalizations, was studied by A.V. Shchepetilov [J. Phys. A: 36 (2003), 3893-3898]. This paper deals with the case of non-metrizable locally symmetric connection. Two flat connections...