Results 21 to 30 of about 472,552 (281)

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

Symmetric products, duality and homological dimension of configuration spaces [PDF]

open access: yes, 2008
We discuss various aspects of `braid spaces' or configuration spaces of unordered points on manifolds. First we describe how the homology of these spaces is affected by puncturing the underlying manifold, hence extending some results of Fred Cohen ...
Kallel, Sadok
core   +5 more sources

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

Totally normal cellular stratified spaces and applications to the configuration space of graphs [PDF]

open access: yes, 2014
The notion of regular cell complexes plays a central role in topological combinatorics because of its close relationship with posets. A generalization, called totally normal cellular stratified spaces, was introduced by the third author by relaxing two ...
Furuse, Mizuki   +2 more
core   +3 more sources

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

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

The Urban Architecture andSpatial Model of Taft Town Hosseiniyahs as Examples of Collective Iranian-Islamic Space; A Study Based on Analytical Approach and the Graph Theory [PDF]

open access: yesصفه
In the present era, urban development and effective urban planning are among the key concerns of societies globally. This study aims to investigate and analyse the nature and spatial configuration pattern of “Husseiniyas” – as an instance of a collective
Mohammadreza Noghsanmohammadi   +2 more
doaj   +1 more source

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