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The paper glosses different forms of an introducing of higher order tangent-like functors, especially functors derived from higher order nonholonomic tangent functors. A special attention is devoted to higher order osculating bundles: their…

Differential Geometry · Mathematics 2012-02-15 Miroslav Kureš

A detailed and systematic density-functional theory (DFT) study of a series of early transition-metal carbides (TMC's) in the NaCl structure is presented. The focus is on the trends in the electronic structure and nature of bonding, which…

Materials Science · Physics 2012-05-14 Aleksandra Vojvodic , Carlo Ruberto

We give a review of truncated L$_\infty$ algebras, as used in the study of higher gauge theory. These structures are believed to hold the correct properties to adequately describe gauge theory of extended objects. We discuss how to…

High Energy Physics - Theory · Physics 2017-01-02 Patricia Ritter

This survey provides an introduction to basic questions and techniques surrounding the topology of the moduli space of stable Higgs bundles on a Riemann surface. Through examples, we demonstrate how the structure of the cohomology ring of…

Algebraic Geometry · Mathematics 2018-12-11 Steven Rayan

Several representations of geometric shapes involve quotients of mapping spaces. The projection onto the quotient space defines two sub-bundles of the tangent bundle, called the horizontal and vertical bundle. We investigate in these notes…

Differential Geometry · Mathematics 2015-11-19 Martin Bauer , Philipp Harms

Topological states of matter are characterized by nonlocal structures that are naturally encoded in the quantum entanglement of many-body wavefunctions. Topological semimetals are short-range entangled states at weak coupling and their…

High Energy Physics - Theory · Physics 2026-02-09 Xiantong Chen , Xuanting Ji , Ya-Wen Sun

Ternary semiconducting or metallic half-Heusler compounds with an atomic composition 1:1:1 are widely studied for their flexible electronic properties and functionalities. Recently, a new material property of half-Heusler compounds was…

Materials Science · Physics 2014-10-28 Binghai Yan , Anne de Visser

We build a tangent structure on the category of divided power algebras using a particular notion of semidirect product. We show that this tangent structure admits an adjoint tangent structure, which involves a version of K\"ahler…

Category Theory · Mathematics 2025-08-25 Sacha Ikonicoff

We consider the topological and geometric structures associated with cohomological and homological objects in M-theory. For the latter, we have M2-branes and M5-branes, the analysis of which requires the underlying spacetime to admit a…

Differential Geometry · Mathematics 2010-10-19 Hisham Sati

Higher bundles are homotopy coherent generalisations of classical fibre bundles. They appear in numerous contexts in geometry, topology and physics. In particular, higher principal bundles provide the geometric framework for higher-group…

Algebraic Topology · Mathematics 2023-08-09 Severin Bunk

We present a rational approach to the design of half-metallic heterostructures which allows the design of an infinite number of half-metallic heterostructures. The wide range of materials that can be made half-metallic using our approach…

Materials Science · Physics 2011-03-22 William H. Butler , Claudia K. A. Mewes , Chunsheng Liu , Tianyi Xu

We present a construction (and classification) of certain invariant 2-forms on the real symplectic group. They are used to define a symplectic form on the quotient by a maximal torus and to "lift" a symplectic structure from a symplectic…

Differential Geometry · Mathematics 2018-04-02 Andrzej Czarnecki

We study the relations between the triviality of the tangent bundle $TM$ and the generalized tangent bundle $\mathbb{T}M = TM\oplus T^*M$ of a manifold. We show that the generalized tangent bundle of a paralellizable manifold is trivial. We…

Differential Geometry · Mathematics 2026-05-18 Fernando Etayo , Pablo Gómez-Nicolás , Rafael Santamaría

In this paper, we develop the theory of singular hermitian metrics on vector bundles. As an application, we give a structure theorem of a projective manifold $X$ with pseudo-effective tangent bundle: $X$ admits a smooth fibration $X \to Y$…

Algebraic Geometry · Mathematics 2021-01-27 Genki Hosono , Masataka Iwai , Shin-ichi Matsumura

Atomically thin metallenes have properties attractive for applications, but they are intrinsically unstable and require delicate stabilization in pores or other nano-constrictions. Substrates provide solid support, but metallenes' wanted…

Materials Science · Physics 2025-06-30 Kameyab Raza Abidi , Pekka Koskinen

We investigate a tangent space at a point of a general metric space and metric space valued derivatives. The conditions under which two different subspace of a metric space have isometric tangent spaces in a common point of these subspaces…

Metric Geometry · Mathematics 2009-04-29 O. Dovgoshey

It is shown that for any compact Lie group $G$ (odd or even dimensional), the tangent bundle $TG$ admits a left-invariant integrable almost complex structure, where the Lie group structure on $TG$ is the natural one induced from $G$. The…

Differential Geometry · Mathematics 2024-06-12 David N. Pham

We define a class of metrics that extend the Sasaki metric of a tangent manifold of a Riemannian manifold. The new metrics are obtained by the transfer of the generalized (pseudo-)Riemannian metrics of the pullback of the big tangent bundle…

Differential Geometry · Mathematics 2013-12-17 Izu Vaisman

Bundles of filamentous polymers are primary structural components of a broad range of cytoskeletal structures, and their mechanical properties play key roles in cellular functions ranging from locomotion to mechanotransduction and…

Soft Condensed Matter · Physics 2010-02-23 Claus Heussinger , Felix Schueller , Erwin Frey

Supplementary comments about generalized Lie algebroids are presented and a new point of view over the construction of the Lie algebroid generalized tangent bundle of a (dual) vector bundle is introduced. Using the general theory of…

Differential Geometry · Mathematics 2014-11-03 E. Peyghan , C. M. Arcuş , L. Nourmohammadifar
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