Results 21 to 30 of about 474,935 (329)

General null asymptotics and superrotation-compatible configuration spaces in d ≥ 4

open access: yesJournal of High Energy Physics, 2021
We address the problem of consistent Campiglia-Laddha superrotations in d > 4 by solving Bondi-Sachs gauge vacuum Einstein equations at the non-linear level with the most general boundary conditions preserving the null nature of infinity.
F. Capone
doaj   +1 more source

Monitoring and assessment of urban green space loss and fragmentation using remote sensing data in the four cities of Malawi from 1986 to 2021

open access: yesScientific African, 2023
Urban green spaces enhance cities' natural beauty, boost biodiversity, and promote the health and happiness of city residents, among other benefits. Despite the benefits of urban green spaces, their spatial configuration and composition are impacted by ...
Kennedy Nazombe, Odala Nambazo
doaj   +1 more source

Configuration space FADDEEV calculations [PDF]

open access: yes, 1989
The detailed study of few-body systems provides one of the most precise tools for studying the dynamics of nuclei and nucleons. This research program consists of a careful theoretical study of few-body systems and methods for modeling these systems. During the past year several aspects of this program were completed.
Payne, G. L.   +2 more
openaire   +4 more sources

Evaluating the impact of mass housings' in-between spaces' spatial configuration on users' social interaction

open access: yesFrontiers of Architectural Research, 2020
This research examines the impact of in-between space configuration on users' social practices. The effects of different degrees of permeability of these spaces on the social interactions of the inhabitants are also analyzed.
Wiem Zerouati, Tahar Bellal
doaj   +1 more source

The Lambrechts-Stanley Model of Configuration Spaces [PDF]

open access: yes, 2018
We prove the validity over $\mathbb{R}$ of a commutative differential graded algebra model of configuration spaces for simply connected closed smooth manifolds, answering a conjecture of Lambrechts--Stanley. We get as a result that the real homotopy type
Idrissi, Najib
core   +3 more sources

Development of Task-Space Nonholonomic Motion Planning Algorithm Based on Lie-Algebraic Method

open access: yesApplied Sciences, 2021
In this paper, a Lie-algebraic nonholonomic motion planning technique, originally designed to work in a configuration space, was extended to plan a motion within a task-space resulting from an output function considered.
Arkadiusz Mielczarek, Ignacy Dulęba
doaj   +1 more source

Configuration space visualization [PDF]

open access: yesProceedings of the twenty-eighth annual symposium on Computational geometry, 2012
Based on a simple parameterization of contact surfaces, we visualize both the workspace and the corresponding configuration space of a planar polygonal robot that moves amid planar polygonal obstacles.
Atariah D., Rote G.
openaire   +1 more source

Curvature bounds for configuration spaces [PDF]

open access: yes, 2014
We show that the configuration space over a manifold M inherits many curvature properties of the manifold. For instance, we show that a lower Ricci curvature bound on M implies for the configuration space a lower Ricci curvature bound in the sense of ...
Erbar, Matthias, Huesmann, Martin
core   +1 more source

BGG resolutions via configuration spaces [PDF]

open access: yes, 2013
We study the blow-ups of configuration spaces. These spaces have a structure of what we call an Orlik-Solomon manifold; it allows us to compute the intersection cohomology of certain flat connections with logarithmic singularities using some Aomoto type ...
Falk, M., Schechtman, V., Varchenko, A.
core   +2 more sources

Configuration Space Metrics [PDF]

open access: yes2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2018
When robot manipulators decide how to reach for an object, hand it over, or obey some task constraint, they implicitly assume a Euclidean distance metric in their configuration space. Their notion of what makes a configuration closer or further is dictated by this assumption. But different distance metrics will lead to different solutions.
Jeon, Hong Jun, Dragan, Anca Diana
openaire   +2 more sources

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