Results 51 to 60 of about 353,858 (83)

Application of the Fisher-Rao metric to ellipse detection [PDF]

open access: yes, 2007
The parameter space for the ellipses in a two dimensional image is a five dimensional manifold, where each point of the manifold corresponds to an ellipse in the image. The parameter space becomes a Riemannian manifold under a Fisher-Rao metric, which is
Stephen J. Maybank, Maybank, Stephen J.
core   +1 more source

Characterizations of quasihyperbolic John domains and uniform domains in metric spaces

open access: yes
In a recent work of Zhou and Ponnusamy [Ann. Sc. Norm. Super. Pisa Ci. Sci. 2025], the authors studied the following natural question: find sufficient and necessary conditions for a domain $Ω$ in a metric space $X$ to be quasihyperbolic John. It was proved that Gromov hyperbolic John domains are quasihyperbolic John, quantitatively.
Gao, Shu-Jing   +3 more
openaire   +2 more sources

A metric approach to limit operators

open access: yes, 2017
We extend the limit operator machinery of Rabinovich, Roch, and Silbermann from Z^N to (bounded geometry, strongly) discrete metric spaces. We do not assume the presence of any group structure or action on our metric spaces.
Spakula, Jan, Willett, Rufus
core   +1 more source

Gromov hyperbolicity of Denjoy domains with hyperbolic and quasihyperbolic metrics [PDF]

open access: yes, 2008
15 pages, 2 figures.-- MSC2000 codes: 30F45, 53C23, 30C99.-- ArXiv pre-print available at: http://arxiv.org/abs/0806.0097SubmittedWe derive explicit and simple conditions which in many cases allow one decide, whether or not a Denjoy domain endowed with ...
Tourís, Eva   +4 more
core   +1 more source

Gromov hyperbolization of unbounded noncomplete spaces and Hamenst\"adt metric [PDF]

open access: yes
In this paper, we investigate Gromov hyperbolizations of unbounded locally complete and incomplete metric spaces associated with three hyperbolic type metrics: the hyperbolization metric introduced by Ibragimov, the distance ratio metric, and the ...
Zhou, Qingshan
core   +1 more source

Other People's Money: The Role of Reciprocity and Social Uncertainty in Decisions for Others. [PDF]

open access: yesJ Neurosci Psychol Econ, 2017
Vlaev I   +5 more
europepmc   +1 more source

Gap Metric Robustness of Adaptive Controllers

open access: yes, 2002
We consider the construction of adaptive controllers for minimum phase linear systems which achieve non-zero robustness margins in the sense of the (linear) L2(0,∞) gap metric. The gap perturbations may be more constrained for larger disturbances and for
French, Mark
core   +1 more source

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