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We propose an extrapolation technique that allows accuracy improvement of the discrete dipole approximation computations. The performance of this technique was studied empirically based on extensive simulations for 5 test cases using many…

光学 · 物理学 2008-07-29 Maxim A. Yurkin , Valeri P. Maltsev , Alfons G. Hoekstra

We calculate the electroweak and QCD corrections to W-W+ -> tt and ZZ -> tt. We also consider the interplay of these corrections with the effect of anomalous interactions that affect the massive weak bosons and the top. The results at the…

高能物理 - 唯象学 · 物理学 2008-11-26 N. Bouayed , F. Boudjema

Geometric conditions on general polygons are given in [9] in order to guarantee the error estimate for interpolants built from generalized barycentric coordinates, and the question about identifying sharp geometric restrictions in this…

数值分析 · 数学 2017-07-03 Gabriel Monzón

Rotational setup errors are usually neglected in most clinical centers. An analytical formula is developed to determine the extra margin between clinical target volume (CTV) and planning target volume (PTV) to account for setup errors. The…

医学物理 · 物理学 2014-11-18 Qinghui Zhang , Weijun Xiong , M. Chan , Y. Song , C. Burman

In this paper, effect of dipole-dipole interactions on nonlinear optical properties of the system of randomly located semiconductor nanoparticles embedded in bulk dielectric matrix is investigated. This effect results from the nonzero…

介观与纳米尺度物理 · 物理学 2013-09-12 Andrey V. Panov

The main result in this paper is an error estimate for interpolation biharmonic polysplines in an annulus $A\left( r_{1},r_{N}\right) $, with respect to a partition by concentric annular domains $A\left( r_{1} ,r_{2}\right) ,$ ....,…

数值分析 · 数学 2022-01-19 Ognyan Kounchev , Hermann Render , Tsvetomir Tsachev

The spread between two lines in rational trigonometry replaces the concept of angle, allowing the complete specification of many geometrical and dynamical situations which have traditionally been viewed approximately. This paper…

经典分析与常微分方程 · 数学 2009-11-06 Shuxiang Goh , N. J. Wildberger

Corrections to the masses of baryons from baryon-meson loops can induce splittings between baryons which are comparable to those arising from the residual interactions between the quarks. These corrections are calculated using a…

核理论 · 物理学 2007-05-23 Danielle Morel , Simon Capstick

A New Error Bound for shifted surface spline interpolation is presented. This error bound probably is the most powerful one up to now.

数值分析 · 数学 2007-12-07 Lin-Tian Luh

It is known that polar ice is birefringent and that this can have implications for in-ice radio detection of ultra-high energy neutrinos. Previous investigations of the effects of birefringence on the propagation of radio-frequency signals…

天体物理仪器与方法 · 物理学 2022-06-29 Amy Connolly

A lunar orbit interferometer array suffers from a number of systematics. Beyond systematics induced by the imaging algorithm itself and thermal noise considered in Paper I, phase errors due to instrumental inconsistency between receivers,…

天体物理仪器与方法 · 物理学 2026-04-01 Meng Zhou , Furen Deng , Yidong Xu , Li Zhou , Xuelei Chen

Robustness problems due to the substitution of the exact computation on real numbers by the rounded floating point arithmetic are often an obstacle to obtain practical implementation of geometric algorithms. If the adoption of the --exact…

计算几何 · 计算机科学 2007-05-23 Olivier Devillers , Philippe Guigue

For the quadratic Lagrange interpolation function, an algorithm is proposed to provide explicit and verified bound for the interpolation error constant that appears in the interpolation error estimation. The upper bound for the…

数值分析 · 数学 2017-04-27 Xuefeng Liu , Chun'guang You

We outline the recent results on the two-loop electroweak contributions to the electron-electron scattering cross sections and asymmetries. Although the two-loop corrections are strongly suppressed relative to the one-loop corrections, they…

高能物理 - 唯象学 · 物理学 2014-11-18 A. Aleksejevs , S. Barkanova , V. Zykunov

Corrections to a mean number of droplets appeared in the process of nucleation have been analyzed. The two stage model with a fixed boundary can not lead to a write result. The multi stage generalization of this model also can not give…

统计力学 · 物理学 2007-05-23 Victor Kurasov

We discuss the influence of two-dimensional hexatic order on capillary waves and undulation modes in spherical and cylindrical geometries. In planar geometries, extended bond-orientational order has only a minor effect on the fluctuations…

软凝聚态物质 · 物理学 2009-11-07 Peter Lenz , David R. Nelson

To analyze the absolute condition number of multivariate polynomial interpolation on Lissajous-Chebyshev node points, we derive upper and lower bounds for the respective Lebesgue constant. The proof is based on a relation between the…

数值分析 · 数学 2017-11-13 Peter Dencker , Wolfgang Erb , Yurii Kolomoitsev , Tetiana Lomako

We study the approximation of maps into complex manifolds along with interpolation on certain compact subsets of the plane. Results are also obtained regarding approximation and interpolation of sections of holomorphic submersions.

复变函数 · 数学 2007-05-23 Debraj Chakrabarti

In this paper we investigate the approximation properties of kernel interpolants on manifolds. The kernels we consider will be obtained by the restriction of positive definite kernels on $\R^d$, such as radial basis functions (RBFs), to a…

泛函分析 · 数学 2011-01-19 Edward Fuselier , Grady Wright

Lensing of the CMB is an important effect, and is usually modelled by remapping the unlensed CMB fields by a lensing deflection. However the lensing deflections also change the photon path so that the emission angle is no longer orthogonal…

宇宙学与河外天体物理 · 物理学 2017-08-21 Antony Lewis , Alex Hall , Anthony Challinor