Results 11 to 20 of about 6,858,749 (300)
A Density Functional Theory for the Average Electron Energy [PDF]
Journal of Chemical Theory and Computation, 2022 A formally exact density functional theory (DFT) determination of the average electron energy is presented. Our theory, which is based on a different accounting of energy functional terms, partially solves one well known downside of conventional Kohn-Sham (KS) DFT: that electronic energies have but tenuous connections to physical quantities. Calculated
Stefano Racioppi +3 more
openaire +4 more sources
A Note on the Average Density Function in Urban Analysis
Urban Studies, 2013 It is argued that the density function, commonly used in the study of urban spatial structure, is more appropriately described as the ‘marginal density function’. From such a marginal density function, it is possible to derive two types of average density function, each being concerned with a particular aspect of the spatial structure of population ...
Holden, Darryl, Parr, John B.
core +7 more sources
The average density of planar Brownian motion [PDF]
, 1997 We show that the occupation measure on the path of a planar Brownian motion run for an arbitrary finite time intervalhas an average density of order three with respect to thegauge function t^2 log(1/t). This is a surprising resultas it seems to be the first instance where gauge functions other than t^s and average densities of order higher than two ...
Mörters, Peter
core +5 more sources
The average density of super-Brownian motion [PDF]
Annales de l'Institut Henri Poincare (B) Probability and Statistics, 2001 In this paper we prove the existence of average densities for the support of a super Brownian motion at a fixed time. Our result establishes a dimension-dependent fractal parameter for super-Brownian motion, which enables us to compare the local mass density of the super-Brownian motion at a fixed time with the local mass density of the occupation ...
Peter Mörters +2 more
openaire +3 more sources
Thermospheric atomic oxygen density estimates using the EISCAT Svalbard Radar [PDF]
, 2013 [1] Coupling between the ionized and neutral atmosphere through particle collisions allows an indirect study of the neutral atmosphere through measurements of ionospheric plasma parameters. We estimate the neutral density of the upper thermosphere above ~
Sutton, E. +4 more
core +5 more sources
AVERAGE DENSITY ESTIMATORS: EFFICIENCY AND BOOTSTRAP CONSISTENCY [PDF]
Econometric Theory, 2021 This paper highlights a tension between semiparametric efficiency and bootstrap consistency in the context of a canonical semiparametric estimation problem, namely the problem of estimating the average density. It is shown that although simple plug-in estimators suffer from bias problems preventing them from achieving semiparametric efficiency under ...
Cattaneo, Matias D., Jansson, Michael
openaire +3 more sources
Not your average density [PDF]
Structure, 1997 GJK would like to thank T Alwyn Jones and Lars Liljas (Uppsala) for illuminating discussions and many pointers to relevant literature. RJR thanks Bart Hazes and Navraj S Pannu for stimulating discussions. We both thank our colleagues for allowing us to share unpublished results in the case histories.
Kleywegt, Gerard J, Read, Randy J
openaire +2 more sources
BOOTSTRAPPING DENSITY-WEIGHTED AVERAGE DERIVATIVES [PDF]
Econometric Theory, 2010 We investigate the properties of several bootstrap-based inference procedures for semiparametric density-weighted average derivatives. The key innovation in this paper is to employ an alternative asymptotic framework to assess the properties of these inference procedures. This theoretical approach is conceptually distinct from the traditional approach (
Cattaneo, Matias D. +2 more
openaire +5 more sources
Using conditional kernel density estimation for wind power density forecasting [PDF]
, 2012 Of the various renewable energy resources, wind power is widely recognized as one of the most promising. The management of wind farms and electricity systems can benefit greatly from the availability of estimates of the probability distribution of wind ...
Jeon, Jooyoung, Taylor, James
core +4 more sources
Extending the average spectrum method: Grid point sampling and density averaging [PDF]
Physical Review B, 2020 10 pages, 10 ...
Khaldoon Ghanem, Erik Koch
openaire +3 more sources