Results 51 to 60 of about 113,373 (284)
On the Power of Some Nonparametric Isotropy Tests
Acta Universitatis Lodziensis. Folia Oeconomica, 2020 In this paper, properties of nonparametric significance tests verifying the random field isotropy hypothesis are discussed. In particular, the subject of the conducted analysis is the probability of rejecting the null hypothesis when it is true.
Krzysztof Szymoniak-Książek
doaj +1 more source
, 2010 The "cosmological principle" was set up early without realizing its implications for the horizon problem, and almost entirely without support from observational data. Consistent signals of anisotropy have been found in data on electromagnetic propagation,
Ralston, John P.
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Isotropy and spurious currents in pseudo-potential multiphase lattice Boltzmann models [PDF]
Computers & Fluids, 2019 The spurious currents observed in multiphase flow simulations with pseudo-potential lattice Boltzmann (LB) models are usually understood to be the result of the lack of isotropy of the model-generated interaction force between phases.
Cheng Peng +3 more
semanticscholar +1 more source
Isotropy of unitary involutions
, 2012 We prove the so-called Unitary Isotropy Theorem, a result on isotropy of a unitary involution. The analogous previously known results on isotropy of orthogonal and symplectic involutions as well as on hyperbolicity of orthogonal, symplectic, and unitary ...
A. S. Merkurjev +13 more
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The Hubble Expansion is Isotropic in the Epoch of Dark Energy [PDF]
, 2014 The isotropy of the universal Hubble expansion is a fundamental tenet of physical cosmology, but it has not been precisely tested during the current epoch, when dark energy is dominant.
Darling, Jeremy
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Evaluation of isotropy in wet-mix sprayed concrete
Materiales de Construccion, 2009 It is well known that there are differences between the fresh mix concrete and the placed concrete sprayed using dry or wet-mix process. Because of that, the characterization of such material is carried out in cores extracted parallel to the spray ...
L. Agulló +3 more
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Elliptic CR-manifolds and shear invariant ODE with additional symmetries
, 2005 We classify the ODEs that correspond to elliptic CR-manifolds with maximal isotropy. It follows that the dimension of the isotropy group of an elliptic CR-manifold can be only 10 (for the quadric), 4 (for the listed examples) or less. This is in contrast
A. Chap +8 more
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A Model-independent Test of Cosmic Isotropy with Low-z Pantheon Supernovae [PDF]
Astrophysical Journal, 2018 The assumption of homogeneity and isotropy on large scales is one of the main hypotheses of the standard cosmological model. In this paper, we revisit a test of cosmological isotropy using type Ia supernova (SN Ia) distances provided by the latest SN Ia ...
U. Andrade +3 more
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Sparse Inpainting and Isotropy
, 2014 Sparse inpainting techniques are gaining in popularity as a tool for cosmological data analysis, in particular for handling data which present masked regions and missing observations.
Cammarota, Valentina +5 more
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Anisotropy vs isotropy in living cell indentation with AFM
Scientific Reports, 2019 The measurement of local mechanical properties of living cells by nano/micro indentation relies on the foundational assumption of locally isotropic cellular deformation.
Yuri M. Efremov +6 more
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