Results 51 to 60 of about 11,024 (141)

Anti-invariant Riemannian submersions from cosymplectic manifolds onto Riemannian manifolds

, 2015
We introduce anti-invariant Riemannian submersions from cosymplectic manifolds onto Riemannian manifolds. We survey main results of anti-invariant Riemannian submersions defined on cosymplectic manifolds. We investigate necessary and sufficient condition

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Some properties of harmonic mappings [PDF]

A harmonic map between Riemannian manifolds satisfies, in local coordinates, a second order semi-linear elliptic system of equations. This system of equations arise as the Euler-Lagrange equations of a natural Dirichlet or energy integral on maps between
Sealey, Howard C. J.
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Structure Theorem for Riemannian surfaces with arbitrary curvature [PDF]

, 2008
15 pages, 3 figures.-- MSC2000 codes: 53C20, 53C22, 58A99.-- ArXiv pre-print available at: http://arxiv.org/abs/0806.0090Previously presented as Poster at: X Encuentros de Análisis Real y Complejo (XEARCO'07, Palma de Mallorca, Spain, May 10-13, 2007 ...
Tourís, Eva, Rodríguez, José M., Portilla, Ana   +2 more
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Dubrovin's duality for F-manifolds with eventual identities [PDF]

, 2011
A vector field <i>E</i> on an <i>F</i>-manifold (M, o, e) is an eventual identity if it is invertible and the multiplication X*Y := X o Y o E^{-1} defines a new F-manifold structure on <i>M</i>.
Ian A.B. Strachan, David, Liana, Liana David, Strachan, Ian A.B.   +3 more
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Anti-invariant Riemannian submersions from Kenmotsu manifolds onto Riemannian manifolds

, 2015
The purpose of this paper is to study anti-invariant Riemannian submersions from Kenmotsu manifolds onto Riemannian manifolds. Several fundamental results in this respect are proved.

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The minimal entropy problem for 3-manifolds with zero simplicial volume [PDF]

, 2003
In this note, we consider the minimal entropy problem, namely the question of whether there exists a smooth metric of minimal (topological) entropy, for certain classes of closed 3 ...
Anderson, J.W., Anderson, James W., Paternain, G.P., Paternain, Gabriel P.   +3 more
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Integrable quadratic Hamiltonians on the Euclidean group of motions

, 2010
In this paper, we discuss the problem of globally computing sub-Riemannian curves on the Euclidean group of motions SE(3). In particular, we derive a global result for special sub-Riemannian curves whose Hamiltonian satisfies a particular condition.
Biggs, James, Biggs, J.D., BIGGS, JAMES DOUGLAS, J. Biggs, W. Holderbaum, Holderbaum, W., Holderbaum, William, Biggs, J. D.   +7 more
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CR submanifolds in Kaehler and nearly Kaehler manifolds [PDF]

, 2004
A review of the study of CR, submanifolds within Kaehler and nearly Kaehler manifolds, and the properties of such manifolds with respect submanifold theory in differential geometry.
Gregg, Matthew Thomas
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Pseudo-manifold geometries with applications [PDF]

, 2006
A Smarandache geometry is a geometry which has at least one Smarandachely denied axiom(1969), i.e., an axiom behaves in at least two different ways within the same space, i.e., validated and invalided, or only invalided but in multiple distinct ways and ...
Mao, Linfan, Linfan Mao
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Degenerate Foliations in Sasakian Semi-Riemannian Manifolds

In the Semi-Riemannian case we do not have the liability of the existence of such a metric being a difference from the Riemannian case. A Semi-Riemannian manifold provided with a normal contact metric structure is called Sasakian manifold.Semi-Riemannian,
Catalin Angelo Ioan
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