Results 31 to 40 of about 5,275 (302)

R-Symmetries and Curvature Constraints in A-Twisted Heterotic Landau–Ginzburg Models

Particles, 2023
In this paper, we discuss various aspects of a class of A-twisted heterotic Landau–Ginzburg models on a Kähler variety X. We provide a classification of the R-symmetries in these models which allow the A-twist to be implemented, focusing on the case in ...
Richard S. Garavuso
doaj   +1 more source

Poisson structures on tangent bundles

Differential 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

Non-natural metrics on the tangent bundle [PDF]

, 2020
Natural metrics provide a way to induce a metric on the tangent bundle from the metric on its base manifold. The most studied type is the Sasaki metric, which applies the base metric separately to the vertical and horizontal components.
Vang, Bee, Tron, Roberto
core  

Dirac Structures on Banach Lie Algebroids

Analele 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

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

پژوهش‌های 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  

Tangent Infinity Categories

, 2023
This is joint work with M. Burke and M. Ching. In this talk, I will present the definition of a tangent infinity category as a generalization of Leung's presentation of tangent categories as Weil-modules.
Bauer, Kristine
core  

A Kähler Einstein structure on the tangent bundle of a space form

International Journal of Mathematics and Mathematical Sciences, 2001
We obtain a Kähler Einstein structure on the tangent bundle of a Riemannian manifold of constant negative curvature. Moreover, the holomorphic sectional curvature of this Kähler Einstein structure is constant.
Vasile Oproiu
doaj   +1 more source

Geometric structures on the tangent bundle of the Einstein spacetime [PDF]

, 2006
summary:We describe conditions under which a spacetime connection and a scaled Lorentzian metric define natural symplectic and Poisson structures on the tangent bundle of the Einstein ...
Janyška, Josef
core  

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Natural Paracontact Magnetic Trajectories on Unit Tangent Bundles

Axioms, 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, Noura Amri   +1 more
doaj   +1 more source