搜索结果: 1-15 共查到“理学 quadrature”相关记录20条 . 查询时间(0.051 秒)
When the worst case integration error in a family of functions decays
as nfor some > 1 and simple averages along an extensible sequence
match that rate at a set of sample sizes n1 < n2 < < 1...
Extensions of Gauss quadrature via linear programming
Gauss quadrature Semi-infi nite programming Convex optimization
2015/8/7
Gauss quadrature is a well known method for estimating the integral of a continuous function with respect to a given measure as a weighted sum of the function evaluated at a set of node points. Gauss ...
A Hierarchical Spherical Radial Quadrature Algorithm for Multilevel GLMMS, GSMMS, and Gene Pathway Analysis
Generalized Semiparametric Mixed Model multilevel Spherical Radial splines
2014/12/8
The first part of my thesis is concerned with estimation for longitudinal data using generalized semi-parametric mixed models and multilevel generalized linear mixed models for a binary response. Like...
带渐消因子的Quadrature卡尔曼滤波
非线性系统 Quadrature卡尔曼滤波 渐消因子 强跟踪滤波器
2014/4/10
为了解决无源传感器机动目标跟踪系统非线性较强、传统的跟踪滤波方法不稳定容易发散的缺陷，提出了一种带渐消因子的QKF（FQKF）算法。该算法通过引入时变渐消因子来实时调整状态预测误差协方差阵、量测预测误差协方差阵及状态预测误差和量测预测误差之间的互协方差阵,利用公式推导得出渐消因子实际上是对状态传播积分点和量测传播积分点进行渐消，进而达到实时调整滤波器增益矩阵的目的。并通过算法的机理分析和仿真实验表...
Quadrature rules and distribution of points on manifolds
Quadrature discrepancy harmonic analysis
2011/2/28
We study the error in quadrature rules on a compact manifold, XN j=1 !jf (zj) − Z
M f(x)dx ≤ cD {zj} V {f} .
Beyond pressureless gas dynamics : Quadrature-based velocity moment models
gas dynamics Quadrature-based velocity moment models
2010/11/19
Following the seminal work of F. Bouchut on zero pressure gas dynamics which has been extensively used for gas particle-flows, the present contribution investigates quadrature-based velocity moments ...
A pseudospectral quadrature method for Navier-Stokes equations on rotating spheres
Navier-Stokes equations unit sphere vector spherical harmonics
2010/12/8
In this work, we describe, analyze, and implement a pseudospec-tral quadrature method for a global computer modeling of the incompressible surface Navier-Stokes equations on the rotating unit sphere. ...
Demonstration of Quadrature Squeezed Surface-Plasmons in a Gold Waveguide
Quadrature Squeezed Surface-Plasmons Gold Waveguide
2010/4/9
We report on the efficient generation, propagation, and re-emission of squeezed long-range surface-plasmon polaritons (SPPs) in a gold waveguide. Squeezed light is used to excite the non-classical SPP...
Tanh-travelling wave solutions and reduction of variable-coefficient unstable nonlinear Schrodinger equation to a quadrature in electron beam plasma
variable -coefficient unstable nonlinear Schrö dinger (vcUNLS) equation travelling wave solutions, RQ method
2010/9/14
The unstable system of plasma equations where an electron beam is injected under a high-frequency electric field is reduced to the variable -coefficient unstable nonlinear Schrödinger (vcUNLS) eq...
Existence of quadrature surfaces for uniform density supported by a segment
free boundary quadrature surfaces shape optimization optimality con-dition uniform density
2008/12/26
Given are two strictly positive constants a and k. We show
that if a ¸ 3:92k then there exists an open and bounded set in R2
which contains strictly the line segment C (C = [¡1; 1]...
A Generalisation of the Pre-Grüss Inequality and Applications to some Quadrature Formulae
Pre-Grüss inequality Generalization Quadrature formulae
2008/7/3
A generalization of the pre-Grüss inequality is presented. It is applied to estimations of remainders of some quadrature formulae.
Inequalities Between the Quadrature Operators and Error Bounds of Quadrature Rules
Approximate integration Quadrature rules Convex functions of higher order
2008/7/1
The order structure of the set of six operators connected with quadrature rules is established in the class of 3-convex functions. Convex combinations of these operators are studied and their error bo...
Monotonicity Results for a Compound Quadrature Method for Finite-Part Integrals
Hadamard finite-part integral Quadrature formula Product trapezoidal formula Monotonicity Fractional differential equation Discrete Gronwall inequality Backward differentiation formula
2008/6/30
Monotonicity Results for a Compound Quadrature Method for Finite-Part Integrals.
On Error Bounds for Gauss-Legendre and Lobatto Quadrature Rules
Convex functions of higher orders Approximate integration Quadrature rules
2008/6/27
The error bounds for Gauss-Legendre and Lobatto quadratures are proved for
four times differentiable functions (instead of six times differentiable functions as in the classical results). Auxiliaril...
Sharp Error Bounds for Some Quadrature Formulae and Applications
Sharp error bounds Quadrature formulae Numerical integration
2008/6/26
In the article ''N. Ujevic, A generalization of the pre-Grüss inequality and applications to some quadrature formulae, J. Inequal. Pure Appl. Math., 3(2), Art. 13, 2002'' error bounds for some quadrat...