Articles with "cross correlations" as a keyword



Multifractal characterization of Brazilian market sectors

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Published in 2019 at "Physica A: Statistical Mechanics and its Applications"

DOI: 10.1016/j.physa.2019.03.092

Abstract: Abstract We study auto correlations and cross correlations of daily price returns for seven Brazilian market (Bovespa) sectors using multifractal detrended fluctuation analysis (MF-DFA) and multifractal detrended cross correlation analysis (MF-DXA). We discover rather distinct… read more here.

Keywords: cross correlations; brazilian market; market sectors; sectors multifractal ... See more keywords

Dipolar Cross-Correlations in Aqueous Systems: How Surfaces Influence Water's Action at a Distance.

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Published in 2025 at "Journal of chemical theory and computation"

DOI: 10.1021/acs.jctc.5c00354

Abstract: Water exhibits several anomalous properties that shape the way water functions in biological and chemical environments. For example, the unusually large dielectric constant of water can be traced back to dipolar cross-correlations, which are manifestations… read more here.

Keywords: correlations aqueous; water; cross correlations; hydration layers ... See more keywords
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Cross-correlations as a diagnostic tool for primordial gravitational waves

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Published in 2020 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2021/03/088

Abstract: We explore and corroborate, by working out explicit examples, the effectiveness of cross-correlating stochastic gravitational wave background anisotropies with CMB temperature fluctuations as a way to establish the primordial nature of a given gravitational wave… read more here.

Keywords: primordial gravitational; gravitational wave; tool primordial; correlations diagnostic ... See more keywords
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Multi-tracer intensity mapping: cross-correlations, line noise & decorrelation

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Published in 2021 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2021/05/068

Abstract: Line intensity mapping (LIM) is a rapidly emerging technique for constraining cosmology and galaxy formation using multi-frequency, low angular resolution maps. Many LIM applications crucially rely on cross-correlations of two line intensity maps, or of… read more here.

Keywords: line; cosmology; intensity; cross correlations ... See more keywords

Testing for high-dimensional white noise using maximum cross-correlations

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Published in 2017 at "Biometrika"

DOI: 10.1093/biomet/asw066

Abstract: SUMMARY We propose a new omnibus test for vector white noise using the maximum absolute autocorrelations and cross-correlations of the component series. Based on an approximation by the $L_\infty$-norm of a normal random vector, the… read more here.

Keywords: using maximum; cross correlations; test; noise using ... See more keywords

Improving ambient noise cross-correlations in the noisy ocean bottom environment of the Juan de Fuca plate

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Published in 2017 at "Geophysical Journal International"

DOI: 10.1093/gji/ggx281

Abstract: S U M M A R Y Ambient noise tomography exploits seismic ground motions that propagate coherently over long interstation distances. Such ground motions provide information about the medium of propagation that is recoverable from… read more here.

Keywords: ambient noise; ocean bottom; plate; cross correlations ... See more keywords

Ambient noise tomography across the Cascadia subduction zone using dense linear seismic arrays and double beamforming

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Published in 2019 at "Geophysical Journal International"

DOI: 10.1093/gji/ggz109

Abstract: In the summer of 2017, we deployed 174 three-component nodal geophones along a 130 km west–east line across the central Oregon forearc lasting about 40 d. Our goal was to evaluate the possibility of imaging the lithospheric… read more here.

Keywords: cross correlations; velocity; double beamforming; location ... See more keywords

Environment from cross-correlations: connecting hot gas and the quenching of galaxies

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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa1617

Abstract: The observable properties of galaxies depend on both internal processes and the external environment. In terms of the environmental role, we still do not have a clear picture of the processes driving the transformation of… read more here.

Keywords: cross; cross correlations; quenching galaxies; environment ... See more keywords

Gravitational waves and galaxies cross-correlations: a forecast on GW biases for future detectors

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf150

Abstract: Gravitational waves (GWs) have rapidly become important cosmological probes since their first detection in 2015. As the number of detected events continues to rise, upcoming instruments like Einstein Telescope (ET) and Cosmic Explorer (CE) will… read more here.

Keywords: gravitational waves; cross correlations; galaxies cross; correlations forecast ... See more keywords

Cosmological constraints from galaxy–lensing cross-correlations using BOSS galaxies with SDSS and CMB lensing

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz2922

Abstract: We present cosmological parameter constraints based on a joint modelling of galaxy–lensing cross-correlations and galaxy clustering measurements in the SDSS, marginalizing over small-scale modelling uncertainties using mock galaxy catalogues, without explicit modelling of galaxy bias.… read more here.

Keywords: galaxy; cmb lensing; galaxy lensing; lensing cross ... See more keywords

Computational Evidence for the Crucial Role of Dipole Cross-Correlations in Polar Glass-Forming Liquids.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.025501

Abstract: In this Letter, we analyze the dipole-dipole correlations obtained from the molecular dynamics simulations for strongly and weakly polar model liquids. As a result, we find that the cross-correlations' contribution to the system's total dipole… read more here.

Keywords: cross correlations; computational evidence; glass forming; forming liquids ... See more keywords