Results 111 to 120 of about 4,006,812 (300)

Strolling along gauge theory vacua

open access: yesJournal of High Energy Physics, 2017
We consider classical, pure Yang-Mills theory in a box. We show how a set of static electric fields that solve the theory in an adiabatic limit correspond to geodesic motion on the space of vacua, equipped with a particular Riemannian metric that we ...
Ali Seraj, Dieter Van den Bleeken
doaj   +1 more source

Strongly contracting geodesics in Outer Space [PDF]

open access: yesGeometry & Topology, 2011
We study the Lipschitz metric on Outer Space and prove that fully irreducible elements of Out(F_n) act by hyperbolic isometries with axes which are strongly contracting. As a corollary, we prove that the axes of fully irreducible automorphisms in the Cayley graph of Out(F_n) are stable, meaning that a quasi-geodesic with endpoints on the axis stays ...
openaire   +3 more sources

WorldCuP: A database of checklists documenting the World's Cultivated Plants and their distributions

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Human life would be unrecognizable without the benefits of cultivated plants, including crops, ornamentals, or plants with other uses. Despite their importance in daily life and prevalence across landscapes, we know surprisingly little about global cultivated plant distributions.
Nicole L. Kinlock   +2 more
wiley   +1 more source

On Finsler Space with Randers Conformal Change — Main Scalar, Geodesic and Scalar Curvature [PDF]

open access: yes, 2012
In the present paper we have found out the expressions for scalar curvature and main scalar of two-dimensional Finsler space obtained by Randers conformal change of Fn.
Arunima Mishra, H.S.Shukla
core   +1 more source

Geometric Intuition Enables Resource‐Efficient Screening for β‐Barrel‐Like Folds in Viral Structural Dark Matter

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Predicted protein structures now enable fold discovery beyond the reach of sequence homology, but scalable and interpretable methods remain limited. We present Cooper‐Beta, a resource‐efficient, chain‐resolved framework for detecting β‐barrel‐like folds from strand connectivity.
Shuyu Zhong, Yuying Jiang
wiley   +1 more source

The shadow of a Thurston geodesic to the curve graph

open access: yes, 2015
33 pages, 10 figuresWe study the geometry of the Thurston metric on Teichmuller space by examining its geodesics and comparing them to Teichmuller geodesics.
Anna Lenzhen   +5 more
core   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

On geodesics in the spaces of constrained curves

open access: yesDifferential Geometry and its Applications
In this work, we study the geodesics of the space of certain geometrically and physically motivated subspaces of the space of immersed curves endowed with a first order Sobolev metric. This includes elastic curves and also an extension of some results on planar concentric circles to surfaces. The work focuses on intrinsic and constructive approaches.
openaire   +2 more sources

Evaluating Pose Estimation Uncertainty From Automatic Point Cloud Registration in Multi‐Sensor Robotic Systems

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT The poses derived from automatic point cloud registration between stationary laser scans that occur naturally in robotic multi‐sensor systems operating in stop‐and‐go mode have the potential to greatly improve and aid localization and trajectory estimation.
Max Brandstätter   +4 more
wiley   +1 more source

Climate Crisis, Human Mobility and Security Challenges in the MENA Region: Implications for Sustainable Development and Regional Stability

open access: yesSustainable Development, EarlyView.
ABSTRACT This study examines the interplay between climate change, violent conflict and forced migration in the Middle East and North Africa (MENA), focusing on asylum flows to the European Union (EU). By integrating high‐resolution climate, conflict and socioeconomic data spanning 2000 to 2023, we develop a comprehensive empirical framework to ...
Shifa Mathbout   +4 more
wiley   +1 more source

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