Results 61 to 70 of about 4,903,854 (193)

Asymptotic confidence regions for density ridges [PDF]

Bernoulli, 2021
We develop large sample theory including nonparametric confidence regions for $r$-dimensional ridges of probability density functions on $\mathbb{R}^d$, where $1\leq ...
openaire   +3 more sources

The Minimum Asymptotic Density of Binary Caterpillars [PDF]

Graphs and Combinatorics, 2018
Given $d\geq 2$ and two rooted $d$-ary trees $D$ and $T$ such that $D$ has $k$ leaves, the density $γ(D,T)$ of $D$ in $T$ is the proportion of all $k$-element subsets of leaves of $T$ that induce a tree isomorphic to $D$, after erasing all vertices of outdegree $1$. In a recent work, it was proved that the limit inferior of this density as the size of $
openaire   +2 more sources

Asymptotic Properties of Error Density Estimators in the Two-Phase Linear Regression Model

Stats
This paper investigates kernel estimation of the error density function for the two-phase linear regression model. We derive the asymptotic distributions of residual-based kernel density estimators.
Fuxia Cheng, Lixia Wang
doaj   +1 more source

The structure functions of 4He nucleus and their asymptotics [PDF]

Ядерна фізика та енергетика, 2011
Density distributions, pair correlation functions, momentum distributions and form factors of 4He nucleus are calculated. Long distance asymptotic behavior of density distributions and pair correlation functions is studied.
D. V. Piatnytskyi
doaj  

Asymptotic Normality of Conditional Density and Conditional Mode in the Functional Single Index Model

Ekonometria, 2021
The main objective of this paper is to investigate the nonparametric estimation of the conditional density of a scalar response variable Y, given the explanatory variable X taking value in a Hilbert space when the sample of observations is considered as ...
Fatima Akkal, Nadia Kadiri, Abbes Rabhi
doaj  

Asymptotic Densities in Logic and Type Theory

Studia Logica, 2008
The authors investigate the proportion between the number of valid propositional formulae of a given length \(n\) against the number of all formulae of length \(n\). The particular interest is to find the limit, if it exists, of the fraction when \(n\to\infty\), represented by a real number called the density of truth of the considered logic.
Zofia Kostrzycka, Marek Zaionc
openaire   +3 more sources

Hall Fields and Current Systems of Magnetic Reconnection under Asymmetric Conditions

The Astrophysical Journal, 2023
The Hall effect is a key component of collisionless reconnection. A previous study showed that a quadrupolar Hall pattern under symmetric conditions degenerates into a bipolar pattern under highly asymmetric conditions.
Y. C. Zhang, S. Y. Tang
doaj   +1 more source

Kohn-Sham kinetic energy density in the nuclear and asymptotic regions: Deviations from the von Weizsäcker behavior and applications to density functionals [PDF]

, 2014
We show that the Kohn-Sham positive-definite kinetic energy (KE) density significantly differs from the von Weizs¨ (VW) one at the nuclear cusp as well as in the asymptotic region.
F. D. Sala, E. Fabiano, L. Constantin
semanticscholar   +1 more source

Asymptotic theory for density ridges [PDF]

, 2014
The large sample theory of estimators for density modes is well understood. In this paper we consider density ridges, which are a higher-dimensional extension of modes.
Yen-Chi Chen, C. Genovese, L. Wasserman
semanticscholar   +1 more source

A new handle on three-point coefficients: OPE asymptotics from genus two modular invariance

Journal of High Energy Physics, 2017
We derive an asymptotic formula for operator product expansion coefficients of heavy operators in two dimensional conformal field theory. This follows from modular invariance of the genus two partition function, and generalises the asymptotic formula for
John Cardy, Alexander Maloney, Henry Maxfield   +2 more
doaj   +1 more source