Results 21 to 30 of about 98,839 (207)

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

A computer scientist’s perspective on approximation of IFS invariant sets and measures with the random iteration algorithm [PDF]

open access: yesInternational Journal of Electronics and Telecommunications
We study invariant sets and measures generated by iterated function systems defined on countable discrete spaces that are uniform grids of a finite dimension.
Tomasz Martyn
doaj   +1 more source

Flows in Infinite-Dimensional Phase Space Equipped with a Finitely-Additive Invariant Measure

open access: yesMathematics, 2023
Finitely-additive measures invariant to the action of some groups on a separable infinitedimensional real Hilbert space are constructed. The invariantness of a measure is studied with respect to the group of shifts on a vector of Hilbert space, the ...
Vsevolod Zh. Sakbaev
doaj   +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

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

On the metrical theory of a non-regular continued fraction expansion

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
We introduced a new continued fraction expansions in our previous paper. For these expansions, we show the Brodén-Borel-Lévy type formula. Furthermore, we compute the transition probability function from this and the symbolic dynamical system of the ...
Lascu Dan, Cîrlig George
doaj   +1 more source

Bootstrap, Markov Chain Monte Carlo, and LP/SDP hierarchy for the lattice Ising model

open access: yesJournal of High Energy Physics, 2023
Bootstrap is an idea that imposing consistency conditions on a physical system may lead to rigorous and nontrivial statements about its physical observables. In this work, we discuss the bootstrap problem for the invariant measure of the stochastic Ising
Minjae Cho, Xin Sun
doaj   +1 more source

Surplus-Invariant Risk Measures [PDF]

open access: yesMathematics of Operations Research, 2020
This paper presents a systematic study of the notion of surplus invariance, which plays a natural and important role in the theory of risk measures and capital requirements. So far, this notion has been investigated in the setting of some special spaces of random variables.
Gao, Niushan, Munari, Cosimo
openaire   +6 more sources

Logarithmic Sobolev inequality for the invariant measure of the periodic Korteweg--de Vries equation. [PDF]

open access: yes, 2011
The periodic KdV equation arises from a Hamiltonian system with infinite-dimensional phase space L^2(T). Bourgain has shown that there exists a Gibbs measure \nu on balls in the phase space such that the Cauchy problem for KdV is well posed on the ...
Gordon Blower, Blower, Gordon
core   +1 more source

Conservation Laws and Invariant Measures in Surjective Cellular Automata [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We discuss a close link between two seemingly different topics studied in the cellular automata literature: additive conservation laws and invariant probability measures.
Jarkko Kari, Siamak Taati
doaj   +1 more source

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