Results 131 to 140 of about 304,775 (175)

Combining Engineering Precision with Clinical Relevance: A Novel Dual Framework for Assessing Pedicle Screw Accuracy in Spine Surgery. [PDF]

J Clin Med
Delafontaine A, Cartiaux O, Francq BG, Cordemans V.   +3 more
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Comparison theorems on H-type sub-Riemannian manifolds. [PDF]

Calc Var Partial Differ Equ
Baudoin F, Grong E, Rizzi L, Vega-Molino S.   +3 more
europepmc   +1 more source

Structure-Enhanced Stress Attenuation in Magnetically Tunable Microstructures: A Numerical Study of Engineered BCT Lattices. [PDF]

Micromachines (Basel)
Feng KP, Liang CC, Li YH.
europepmc   +1 more source

Einstein-Weyl structures on almost contact metric manifolds

Einstein-Weyl structures on almost contact metric manifolds
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Local almost contact metric 3-structures

Publicationes Mathematicae Debrecen, 2000
The authors study a natural odd-dimensional analogue of quaternion-Kähler structures. They show that such manifolds are Einstein with positive scalar curvature and if complete are compact with finite fundamental group; with some regularity assumption they fiber with 3-dimensional spherical space forms over Einstein orbifolds with positive scalar ...
Matzeu, Paola, Ornea, Liviu
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Almost Contact Metric Structures on the Hypersurface of Almost Hermitian Manifolds

Journal of Mathematical Sciences, 2015
This is a review paper on the theories of almost contact, almost Hermitian and Kenmotsu structures and their use in classical differential geometry. The authors give a very comprehensive account on the historical development of these structures using only Riemannian metrics, although modern applicable studies on these structures have been extended ...
Banaru, M. B., Kirichenko, V. F.
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Almost contact metric submersions and structure equations

Publicationes Mathematicae Debrecen, 2022
This paper is a continuation of two papers of the author [Rend. Circ. Mat. Palermo, II. Ser. 33, 319-330 (1984; Zbl 0559.53021), and ibid. 34, 89-104 (1985; Zbl 0572.53033)]. For two almost contact metric manifolds M and M' the differential geometric properties of almost contact submersions are studied.
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New classes of almost contact metric structures

Publicationes Mathematicae Debrecen, 2022
Let M be an almost contact metric manifold with structure tensors (\(\phi\),\(\xi\),\(\eta\),g). As is well known an almost contact structure (\(\phi\),\(\xi\),\(\eta)\) is said to be normal if the almost complex structure J on \(M\times {\mathbb{R}}\) defined by \[ J[X,a\frac{d}{dt}]=[\phi X-a\xi,\eta (X)\frac{d}{dt}] \] where a is a \(C^{\infty ...
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