Results 31 to 40 of about 171,839 (292)

Poisson structures on tangent bundles

open access: yesDifferential Geometry and its Applications, 2003
The paper starts with an interpretation of the complete lift of a Poisson structure from a manifold M to its tangent bundle TM by means of the Schouten- Nijenhuis bracket of covariant symmetric tensor fields defined by the co- tangent Lie algebroid of M.
Mitric, Gabriel, Vaisman, Izu
openaire   +3 more sources

Natural liftings of foliations to the tangent bundle [PDF]

open access: yes, 1992
summary:A classification of natural liftings of foliations to the tangent bundle is ...
Mikulski, W. M.
core   +1 more source

Dirac Structures on Banach Lie Algebroids

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
In the original definition due to A. Weinstein and T. Courant a Dirac structure is a subbundle of the big tangent bundle T M ⊕ T* M that is equal to its ortho-complement with respect to the so-called neutral metric on the big tangent bundle.
Vulcu Vlad-Augustin
doaj   +1 more source

City of Tangent comprehensive plan [PDF]

open access: yes, 2007
89 pp. Bookmarks supplied by UO. Maps, tables, illus. Adopted November, 2007. Captured May 6, 2009.The Comprehensive Plan for the City of Tangent (the City) is the primary document which guides and controls land use within the City limits and the Urban ...
Tangent (Or.)
core   +1 more source

On the Classifying of the Tangent Sphere Bundle with Almost Contact B-Metric Structure

open access: yesپژوهش‌های ریاضی, 2021
One of the classical fundamental motifs in differential geometry of manifolds is the notion of the almost contact structure. As a counterpart of the almost contact metric structure, the notion of the almost contact B-metric structure has been an ...
Esmaeil Peyghan, Farshad Firuzi
doaj  

Higher Order Tangent Bundles [PDF]

open access: yesMediterranean Journal of Mathematics, 2016
The tangent bundle $T^kM$ of order $k$, of a smooth Banach manifold $M$ consists of all equivalent classes of curves that agree up to their accelerations of order $k$. For a Banach manifold $M$ and a natural number $k$ first we determine a smooth manifold structure on $T^kM$ which also offers a fiber bundle structure for $(π_k,T^kM,M)$.
openaire   +3 more sources

On the restrictions of the tangent bundle of the Grassmannians [PDF]

open access: yesPacific Journal of Mathematics, 1992
Let \(X\) be a projective variety and \(Q\) a vector bundle on \(X\); let \(q\) be a surjection \[ q:\bigoplus^ m{\mathcal O}_ X\to Q\to 0 \] and put \(S=\text{Ker} q\). The author studies the deformations of \(S\) obtained by moving \(q\) in the space \(A(*,Q)\) of surjections \(\bigoplus^ m{\mathcal O}_ X\to Q\). Under some cohomological assumptions \
openaire   +3 more sources

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Natural Paracontact Magnetic Trajectories on Unit Tangent Bundles

open access: yesAxioms, 2020
In this paper, we study natural paracontact magnetic trajectories in the unit tangent bundle, i.e., those that are associated to g-natural paracontact metric structures.
Mohamed Tahar Kadaoui Abbassi   +1 more
doaj   +1 more source

Accelerated Discovery of Topological Spin Phase Diagrams in CrSBr Magnets Via High‐Throughput Optimization

open access: yesAdvanced Functional Materials, EarlyView.
Here, we develop a high‐throughput algorithm that accelerates the elucidation of phase diagrams of topological spin textures using limited computational resources at high numerical accuracy. Applying this framework to the van der Waals magnet CrSBr, we unveiled a hierarchy of previously unknown topological textures (domain‐wall bimerons, bimeron chains,
Andrew Lyall   +4 more
wiley   +1 more source

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