Results 21 to 30 of about 76,132 (306)

Generalized powers and measures [PDF]

open access: yesOpuscula Mathematica, 2021
Using the winding of measures on torus in "rational directions" special classes of unitary operators and pairs of isometries are defined. This provides nontrivial examples of generalized powers.
Zbigniew Burdak   +4 more
doaj   +1 more source

Nonexistence of invariant measures [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
Let G G be a group acting on a set
openaire   +1 more source

Are factor scores measurement invariant?

open access: yesPsychological Methods, 2023
There has been increased interest in practical methods for integrative analysis of data from multiple studies or samples, and using factor scores to represent constructs has become a popular and practical alternative to latent variable models with all individual items. Although researchers are aware that scores representing the same construct should be
Mark H. C. Lai, Winnie Wing-Yee Tse
openaire   +2 more sources

Dynamics and the Cohomology of Measured Laminations

open access: yesMathematics, 2016
In this paper, the interconnection between the cohomology of measured group actions and the cohomology of measured laminations is explored, the latter being a generalization of the former for the case of discrete group actions and cocycles evaluated on ...
Carlos Meniño Cotón
doaj   +1 more source

Measurement of color invariants

open access: yesProceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662), 2002
This paper presents the measurement of object reflectance from color images. We exploit the Gaussian scale-space paradigm to define framework for the robust measurement of object reflectance from color images. Illumination and geometrical invariant properties are derived from a physical reflectance model based on the Kubelka-Munk theory.
Geusebroek, J.M.   +2 more
openaire   +4 more sources

Equivalence of ensembles for two-species zero-range invariant measures [PDF]

open access: yes, 2008
We study the equivalence of ensembles for stationary measures of interacting particle systems with two conserved quantities and unbounded local state space.
Grosskinsky, Stefan
core   +1 more source

(In)homogeneous invariant compact convex sets of probability measures

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2020
It is proved that for any iterated function system of contractions on a complete metric space there exists an invariant compact convex sets of probability measures of compact support on this space.
Natalia Mazurenko, Mykhailo Zarichnyi
doaj   +1 more source

Deformation-specific and deformation-invariant visual object recognition: pose vs identity recognition of people and deforming objects [PDF]

open access: yes, 2014
When we see a human sitting down, standing up, or walking, we can recognise one of these poses independently of the individual, or we can recognise the individual person, independently of the pose. The same issues arise for deforming objects. For example,
Tristan J Webb   +5 more
core   +1 more source

On Continuity of Invariant Measures [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
Main Theorem. Let Φ \Phi
openaire   +1 more source

Vitali’s theorem for invariant measures [PDF]

open access: yesTransactions of the American Mathematical Society, 1961
Csn, lim.,0 XkSn=0, and XkUU,/XkSn_oa. (Xk denotes Lebesgue measure in the space X = Rk. The number a is called a parameter of regularity at x.) The invariance under translation of the set-function Xk suggests the point of view adopted in the present generalization of Vitali's theorem.
Comfort, W. W., Gordon, Hugh
openaire   +2 more sources

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