Results 91 to 100 of about 14,989,965 (288)

Nonstandard methods in large-scale topology II [PDF]

arXiv, 2020
This paper is a sequel of Imamura (2019) (arXiv:1711.01609) where we set up a framework of nonstandard large-scale topology. In the present paper, we apply our framework to various topics in large-scale topology: spaces having with both small-scale and large-scale structures, large-scale structures on nonstandard extensions, size properties of subsets ...
arxiv  

First steps in the geography of scale Hilbert structures [PDF]

arXiv, 2009
Scale structures were introduced by H.Hofer, K.Wysocki, and E.Zehnder. In this note we define an invariant for scale Hilbert spaces modulo scale isomorphism and use it to distinguish large classes of scale Hilbert spaces.
arxiv  

Shape recognition using orientational and morphological scale‐spaces of curvatures

IET Computer Vision, 2015
In this study, a scale‐invariant representation for closed planar curves (silhouettes) is proposed. The orientations of all points within the Gaussian scale‐space of the curve are extracted.
Erdem Akagündüz
doaj   +1 more source

Land Quality, Development and Space: Does Scale Matter?

European Spatial Research and Policy, 2013
This study analyzes empirically the relationship between land quality decline and the spatial distribution of per capita income observed in Italy at different spatial scales and geographical divisions.
Luca Salvati
doaj   +1 more source

Scale‐Aware Space‐Time Stochastic Parameterization of Subgrid‐Scale Velocity Enhancement of Sea Surface Fluxes

Journal of Advances in Modeling Earth Systems, 2021
Stochastic representation of the influence of the subgrid‐scales on the resolved scales in weather and climate models has been shown to improve ensemble spread and resolved variability.
Julie Bessac, Hannah M. Christensen, Kota Endo, Adam H. Monahan, Nils Weitzel   +4 more
doaj   +1 more source

Electron-scale measurements of magnetic reconnection in space

Science, 2016
Probing magnetic reconnection in space Magnetic reconnection occurs when the magnetic field permeating a conductive plasma rapidly rearranges itself, releasing energy and accelerating particles.
J. Burch, R. Torbert, T. Phan, L. Chen, T. Moore, R. Ergun, J. Eastwood, D. Gershman, P. Cassak, M. Argall, S. Wang, M. Hesse, C. Pollock, B. Giles, R. Nakamura, B. Mauk, S. Fuselier, C. Russell, R. Strangeway, J. Drake, M. Shay, Y. Khotyaintsev, P. Lindqvist, G. Marklund, F. Wilder, D. Young, K. Torkar, J. Goldstein, J. Dorelli, L. Avanov, M. Oka, D. Baker, A. Jaynes, K. Goodrich, I. Cohen, D. Turner, J. Fennell, J. Blake, J. Clemmons, M. Goldman, D. Newman, S. Petrinec, K. Trattner, B. Lavraud, P. Reiff, Wolfgang Baumjohann, W. Magnes, M. Steller, W. Lewis, Y. Saito, V. Coffey, M. Chandler   +51 more
semanticscholar   +1 more source

Scale relativity and fractal space-time: theory and applications

, 2008
In the first part of this contribution, we review the development of the theory of scale relativity and its geometric framework constructed in terms of a fractal and nondifferentiable continuous space-time.
A. Carpinteri, A. Connes, A. G. Agnese, A. Johansen, B. Mandelbrot, C. Allègre, C. Castro, C. Castro, C. Rovelli, C. Rovelli, D. G. C. McKeon, D. Noble, D. Noble, D. Queiros-Condé, D. Sornette, D. Sornette, D. Sornette, E. Nelson, F. Ben Adda, F. Ben Adda, F. Ben Adda, G. Amelino-Camelia, G. Amelino-Camelia, G. Jumarie, G. Jumarie, G. Jumarie, G. Jumarie, G. N. Ord, G. N. Ord, G. N. Ord, H. Grabert, H. Kröger, J. C. Pecker, J. C. Pissondes, J. Cresson, J. Cresson, J. Cresson, J. Cresson, J. M. Levy-Leblond, J. Polchinski, K. R. Lang, L. F. Abbott, L. Nottale, L. Nottale, L. Nottale, L. Nottale, Laurent Nottale, M. A. Peterson, M. B. Green, M. J. W. Hall, M. S. El Naschie, M. S. El Naschie, M. S. Wang, M. V. Berry, N. P Smith, P. Grou, R. Cafiero, R. Hermann, R. Hermann, R. P. Feynman, S. H. Saar, S. J. Gould, Ya. B. Zeldovich   +62 more
core   +2 more sources

Scale-Space Theory : A Basic Tool for Analysing Structures at Different Scales

, 1994
An inherent property of objects in the world is that they only exist as meaningful entities over certain ranges of scale.
Tony Lindeberg
semanticscholar   +1 more source

Securing a Just Space for Small-Scale Fisheries in the Blue Economy

Frontiers in Marine Science, 2019
The vast developmental opportunities offered by the world's coasts and oceans have attracted the attention of governments, private enterprises, philanthropic organizations, and international conservation organizations.
P. Cohen, E. Allison, N. Andrew, J. Cinner, L. Evans, M. Fabinyi, L. Garcés, S. Hall, Christina C. Hicks, T. Hughes, S. Jentoft, D. Mills, R. Masu, E. Mbaru, B. Ratner   +14 more
semanticscholar   +1 more source

Generalisations of coarse spaces [PDF]

arXiv, 2018
Coarse geometry, the branch of topology that studies the global properties of spaces, was originally developed for metric spaces and then Roe introduced coarse structures as a large-scale counterpart of uniformities. In the literature, there are very important generalisations of uniform spaces, such as semi-uniform and quasi-uniform spaces.
arxiv