Results 51 to 60 of about 4,903,854 (193)
On asymptotic density inn-dimensions [PDF]
Pacific Journal of Mathematics, 1969 The notion of asymptotic density for sets of non-negative integers is generalized to sets of \(n\)-dimensional ``non-negative'' lattice points. Let \(S\) be the set of all \(n\)-tuples of non-negative integers. For \(A\subseteq S\), the Schnirelmann density, \(d(A)\), of \(A\), has been defined to be \(glb_F(A(F)/S(F))\) where \(X(Y)\) is the number of
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Contractions of Product Density Operators of Systems of Identical Fermions and Bosons
International Journal of Mathematics and Mathematical Sciences, 2010 Recurrence and explicit formulae for contractions (partial traces) of antisymmetric and symmetric products of identical trace class operators are derived. Contractions of product density operators of systems of identical fermions and bosons are proved to
Wiktor Radzki
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Machine-learning-based exchange correlation functional with physical asymptotic constraints
Physical Review Research, 2022 Density functional theory is the standard theory for computing the electronic structure of materials, which is based on a functional that maps the electron density to the energy.
Ryo Nagai, Ryosuke Akashi, Osamu Sugino
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Simple Local Polynomial Density Estimators [PDF]
Journal of the American Statistical Association, 2018 This article introduces an intuitive and easy-to-implement nonparametric density estimator based on local polynomial techniques. The estimator is fully boundary adaptive and automatic, but does not require prebinning or any other transformation of the ...
Matias D. Cattaneo +2 more
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, 2021 It is proved that $P(ω)/\triangle_d$, where $\triangle_d$ is the ideal of sets of asymptotic density zero, is universal in the sense of embeddings.
Frankiewicz, Ryszard, Jureczko, Joanna
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The Statistical Curvature of Seemingly Unrelated Unrestricted Regression Equations. [PDF]
The Egyptian Statistical Journal, 1997 We study the finite sample properties of an asymptotically efficient estimator for coefficients of seemingly unrelated unrestricted regression (SUUR) equations. Zellner (1963) derived the exact probability density function of the SUUR estimator.
Ahmed Youssef
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Asymptotic density of open p-brane states with zero-modes included [PDF]
, 2003 We obtain the asymptotic density of open p-brane states with zero-modes included. The resulting logarithmic correction to the p-brane entropy has a coefficient − p+2 2p , and is independent of the dimension of the embedding spacetime.
S. Rama
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Statistica, 2022 The main objective of this work is to estimate, semi-parametrically, the mode of a conditional density when the response is a real valued random variable subject to censored phenomenon and the predictor takes values in a semi-metric space. We assume that
Abbes Rabhi +2 more
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Asymptotic Behaviors of Nearest Neighbor Kernel Density Estimator in Left-truncated Data [PDF]
Journal of Sciences, Islamic Republic of Iran, 2014 Kernel density estimators are the basic tools for density estimation in non-parametric statistics. The k-nearest neighbor kernel estimators represent a special form of kernel density estimators, in which the bandwidth is varied depending on the ...
V. Fakoor
doaj
Nonlinear Asymptotic Stability of the Lane-Emden Solutions for the Viscous Gaseous Star Problem with Degenerate Density Dependent Viscosities [PDF]
, 2015 The nonlinear asymptotic stability of Lane-Emden solutions is proved in this paper for spherically symmetric motions of viscous gaseous stars with the density dependent shear and bulk viscosities which vanish at the vacuum, when the adiabatic exponent $${
T. Luo, Z. Xin, Huihui Zeng
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