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Semi-local density functional approximations are widely used. None of them can capture the long-range van der Waals (vdW) attraction between separated subsystems, but they differ remarkably in the extent to which they capture…

材料科学 · 物理学 2020-03-04 Santosh Adhikari , Hong Tang , Bimal Neupane , Gabor I. Csonka , Adrienn Ruzsinszky

We prove localized energy estimates for the wave equation in domains with a strictly concave boundary when homogeneous Dirichlet or Neumann conditions are imposed. By restricting the solution to small, frequency dependent, space time…

偏微分方程分析 · 数学 2014-11-07 Matthew D. Blair

Multisite local orbitals, which are formed from linear combinations of pseudo-atomic orbitals from a target atom and its neighbor atoms, have been introduced in the large-scale density functional theory calculation code CONQUEST. Multisite…

材料科学 · 物理学 2014-11-11 Ayako Nataka , David R. Bowler , Tsuyoshi Miyazaki

It has been recognized recently that fractional calculus is useful for handling scaling structures and processes. We begin this survey by pointing out the relevance of the subject to physical situations. Then the essential definitions and…

chao-dyn · 物理学 2009-10-30 Kiran M. Kolwankar , Anil D. Gangal

We develop a wavelet like representation of functions in $L^p(\mathbb{R})$ based on their Fourier--Hermite coefficients; i.e., we describe an expansion of such functions where the local behavior of the terms characterize completely the…

经典分析与常微分方程 · 数学 2016-08-08 H. N. Mhaskar

An integral for a scalar function with respect to a multimeasure $N$ taking its values in a locally convex space is introduced. The definition is independent of the selections of $N$ and is related to a functional version of the…

泛函分析 · 数学 2023-02-14 Luisa Di Piazza , Kazimierz Musial , Anna Rita Sambucini

Model sets (also called cut and project sets) are generalizations of lattices, and multi-component model sets are generalizations of lattices with colourings. In this paper, we study self-similarities of multi-component model sets. The main…

数学物理 · 物理学 2007-05-23 Michael Baake , Robert V. Moody

In this paper, we consider a new class of generalized Convex structure and we investigate their tropical limits. Some properties are pointing out such that translation homotheticity and others ones allowing to consider the case of discrete…

最优化与控制 · 数学 2024-08-16 Walter Briec , Stéphane Mussard , Paola Ravelojaona

Here we focus on the measurement induced nonlocality and present a redefinition in terms of the skew information subject to a broken observable. It is shown that the obtained quantity possesses an obvious operational meaning, can tackle the…

量子物理 · 物理学 2019-03-19 Li-qiang Zhang , Ting-ting Ma , Chang-shui Yu

In this paper, an algorithm based on polyphase matrix for constructing a pair of orthogonal wavelet frames is suggested, and a general form for all orthogonal tight wavelet frames on local fields of positive characteristic is described.…

泛函分析 · 数学 2018-03-26 M. Younus Bhat

Ubiquitous Van der Waals interactions between atoms and molecules are important for many molecular and solid structures. These systems are often studied from first principles using the Density Functional Theory (DFT). However, the commonly…

材料科学 · 物理学 2009-11-13 Pier Luigi Silvestrelli

We introduce a family of local inhomogeneous mark-weighted summary statistics, of order two and higher, for general marked point processes. Depending on how the involved weight function is specified, these summary statistics capture…

统计方法学 · 统计学 2024-03-13 Nicoletta D'Angelo , Giada Adelfio , Jorge Mateu , Ottmar Cronie

The scale hierarchy of wavelets provides a natural frame for renormalization. Expanding the order parameter of the Landau-Ginzburg/$\Phi^4$ model in a basis of compact orthonormal wavelets explicitly exhibits the coupling between scales…

高能物理 - 格点 · 物理学 2015-06-25 Christoph Best

Dealing with massive data is a challenging task for machine learning. An important aspect of machine learning is function approximation. In the context of massive data, some of the commonly used tools for this purpose are sparsity,…

机器学习 · 计算机科学 2020-07-08 Hrushikesh N Mhaskar

When a quantum system is macroscopic and becomes entangled with a microscopic one, this entanglement is not immediately total, but gradual and local. A study of this locality is the starting point of the present work and shows unexpected…

量子物理 · 物理学 2015-06-17 Roland Omnes

In this report, we consider extended real-valued functions on some real vector space. Gerstewitz functionals are used to construct all translative functions. We derive formulas for translative functions which are lower semicontinuous,…

最优化与控制 · 数学 2018-11-02 Petra Weidner

The wavefunction for the multiparticle Schr\"odinger equation is a function of many variables and satisfies an antisymmetry condition, so it is natural to approximate it as a sum of Slater determinants. Many current methods do so, but they…

数学物理 · 物理学 2009-11-13 Gregory Beylkin , Martin J. Mohlenkamp , Fernando Pérez

Samplets are data adapted multiresolution analyses of localized discrete signed measures. They can be constructed on scattered data sites in arbitrary dimension such that they exhibit vanishing moments with respect to any prescribed set of…

数值分析 · 数学 2026-04-14 Gianluca Giacchi , Michael Multerer , Jacopo Quizi

This paper examines the wavelet multiplicity function. An explicit formula for the multiplicity function is derived. An application to operator interpolation is then presented. We conclude with several remarks regarding the wavelet…

泛函分析 · 数学 2007-05-23 Eric Weber

Non-parametric estimation of a multivariate density estimation is tackled via a method which combines traditional local smoothing with a form of global smoothing but without imposing a rigid structure. Simulation work delivers encouraging…

统计方法学 · 统计学 2016-10-10 Adelchi Azzalini
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