Results 21 to 30 of about 488,222 (301)
Stochastic Analysis of Subcritical Amplification of Magnetic Energy in a Turbulent Dynamo [PDF]
, 2004 We present and analyze a simplified stochastic $\alpha \Omega -$dynamo model which is designed to assess the influence of additive and multiplicative noises, non-normality of dynamo equation, and nonlinearity of the $\alpha -$% effect and turbulent ...
Baggett +39 more
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Cohomology Theory for Non-Normal Subgroups and Non-Normal Fields [PDF]
Proceedings of the Glasgow Mathematical Association, 1954 Let G be a finite group, H an arbitrary subgroup (i.e., not necessarily normal); we decompose G as a union of left cosets modulo H:choosing fixed coset representatives v. In this paper we construct a “coset space complex” and assign cohomology groups; Hr([G: H], A), to it for all coefficient modules A and all dimensions, -∞<r<∞. We show that ifis
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Right on Target, or Is it? The Role of Distributional Shape in Variance Targeting
Econometrics, 2015 Estimation of GARCH models can be simplified by augmenting quasi-maximum likelihood (QML) estimation with variance targeting, which reduces the degree of parameterization and facilitates estimation.
Stanislav Anatolyev, Stanislav Khrapov
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Parametric or Non-parametric: Skewness to Test Normality for Mean Comparison
International Journal of Assessment Tools in Education, 2020 Checking the normality assumption is necessary to decide whether a parametric or non-parametric test needs to be used. Different ways are suggested in literature to use for checking normality. Skewness and kurtosis values are one of them.
Fatih Orcan
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An Alternative Measures of Moments Skewness Kurtosis and JB Test of Normality
Journal of Statistical Theory and Applications (JSTA), 2021 If we know the statistics of central tendency and dispersion, we still cannot nature a complete design about the distribution. About these measures we should know more information's of skewness and kurtosis, which are enables us to have a design the
Md. Siraj-Ud-Doulah
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Frontiers in Psychology, 2018 This simulation study assessed the statistical performance of a skew t mixture latent state-trait (LST) model for the analysis of longitudinal data. The model aims to identify interpretable latent classes with class-specific LST model parameters.
Louisa Hohmann +2 more
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Multivariate Birnbaum-Saunders Distributions: Modelling and Applications
Risks, 2018 Since its origins and numerous applications in material science, the Birnbaum–Saunders family of distributions has now found widespread uses in some areas of the applied sciences such as agriculture, environment and medicine, as well as in quality ...
Robert G. Aykroyd +2 more
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Non-normality and non-monotonic dynamics in complex reaction networks
Physical Review Research, 2020 Complex chemical reaction networks, which underlie many industrial and biological processes, often exhibit non-monotonic changes in chemical species concentrations.
Zachary G. Nicolaou +4 more
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Testing the equality of multiple high-dimensional covariance matrices
Results in Applied Mathematics, 2022 In this paper, we develop a new test procedure for testing the homogeneity of multiple high-dimensional covariance matrices, where the populations may not be multivariate normal.
Jieqiong Shen
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Non-normal abelian covers [PDF]
Compositio Mathematica, 2012 AbstractAn abelian cover is a finite morphism X→Y of varieties which is the quotient map for a generically faithful action of a finite abelian group G. Abelian covers with Y smooth and X normal were studied in [R. Pardini, Abelian covers of algebraic varieties, J. Reine Angew. Math. 417 (1991), 191–213; MR 1103912(92g:14012)].
R. Pardini, V. Alexeev
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