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This paper proposes an efficient boundary-integral based "windowed Green function" methodology (WGF) for the numerical solution of three-dimensional electromagnetic problems containing dielectric waveguides. The approach, which generalizes…

数值分析 · 数学 2021-10-25 Emmanuel Garza , Constantine Sideris , Oscar P. Bruno

This paper studies an unsupervised deep learning-based numerical approach for solving partial differential equations (PDEs). The approach makes use of the deep neural network to approximate solutions of PDEs through the compositional…

机器学习 · 计算机科学 2020-08-26 Zhiqiang Cai , Jingshuang Chen , Min Liu , Xinyu Liu

This article discusses a mixed FE technique for 3D nonlinear elasticity using a Hu-Washizu (HW) type variational principle. Here, the deformed configuration and sections from its cotangent bundle are taken as additional input arguments. The…

数值分析 · 数学 2021-09-06 Bensingh Dhas , Jamun Kumar , Debasish Roy , J N Reddy

We present a detailed review of large-scale structure (LSS) study using the discrete wavelet transform (DWT). After describing how one constructs a wavelet decomposition we show how this bases can be used as a complete statistical…

天体物理学 · 物理学 2016-08-30 Li-Zhi Fang , Jesus Pando

In this study, we explore the field of physics through the lens of fractional dimensionality. We propose that space is not confined to integer dimensions alone, but can also be understood as a superposition of spaces that exist between…

综合物理 · 物理学 2026-03-24 Ali Dorostkar

We study a quantum-algorithmic framework for parameterizing partial differential equations (PDEs). For a broad class of problems in which the discretized parameter field admits a diagonal representation, block-encodings of diagonal…

量子物理 · 物理学 2026-03-03 Hiroshi Yano , Yuki Sato

Propagation characteristics of a wave are defined by the dispersion relationship, from which the governing partial differential equation (PDE) can be recovered. PDEs are commonly solved numerically using the finite-difference (FD) method,…

数值分析 · 数学 2021-07-29 Edward Caunt

A general calculational method is applied to investigate symmetry relations among divergent amplitudes in a free fermion model. A very traditional work on this subject is revisited. A systematic study of one, two and three point functions…

高能物理 - 理论 · 物理学 2009-10-31 O. A. Battistel , O. L. Battistel

Physical models with uncertain inputs are commonly represented as parametric partial differential equations (PDEs). That is, PDEs with inputs that are expressed as functions of parameters with an associated probability distribution.…

GWR is a popular approach for investigating the spatial variation in relationships between response and predictor variables, and critically for investigating and understanding process spatial heterogeneity. The geographically weighted (GW)…

应用统计 · 统计学 2021-09-30 Alexis Comber , Chris Brunsdon , Martin Callaghan , Paul Harris , Binbin Lu , Nick Malleson

Phase-field models have been widely used to investigate the phase transformation phenomena. However, it is difficult to solve the problems numerically due to their strong nonlinearities and higher-order terms. This work is devoted to…

数值分析 · 数学 2024-07-23 Gang Bao , Chang Ma , Yuxuan Gong

A consideration of waves propagating parallel to the external magnetic field is presented. The dielectric permeability tensor is derived from quantum kinetic equations with non-trivial equilibrium spin-distribution functions (NTESDF) in the…

等离子体物理 · 物理学 2017-11-22 Pavel A. Andreev , L. S. Kuz'menkov

The analysis of gravitational-wave (GW) signals is one of the most challenging application areas of signal processing. Wavelet transforms are specially helpful in detecting and analyzing GW transients and several analysis pipelines are…

广义相对论与量子宇宙学 · 物理学 2024-05-27 Andrea Virtuoso , Edoardo Milotti

Diffractive optical elements (DOEs) are widely applied as compact solutions for desired light manipulations via wavefront shaping. Recent advanced chip applications further require their feature sizes to move down to the subwavelength,…

光学 · 物理学 2021-11-01 I-Lin Ho

This paper studies the convergence conditions and properties of the distributed adaptive signal fusion (DASF) algorithm, the framework itself having been introduced in a `Part I' companion paper. The DASF algorithm can be used to solve…

信号处理 · 电气工程与系统科学 2023-05-12 Cem Ates Musluoglu , Charles Hovine , Alexander Bertrand

Neural network field theory (NN-FT) formulates field theory in terms of a network architecture and a density on its parameters. We derive Schwinger--Dyson equations and Ward identities in NN-FT and utilize them to study anomalies. The…

高能物理 - 理论 · 物理学 2026-05-13 Christian Ferko , Samuel Frank , James Halverson , Vishnu Jejjala

We study the general class of gravitational field theories constructed on the basis of scale invariance (and therefore absence of any mass parameters) and invariance under transverse diffeomorphisms (TDiff), which are the 4-volume…

高能物理 - 理论 · 物理学 2011-08-12 Diego Blas , Mikhail Shaposhnikov , Daniel Zenhausern

Wavelets are known to be closely related to atomic orbital. A new approach of 2D, 3D and multidimensional wavelet system is proposed from a paralell with anti-symmetric systems of several isolated particles. The theory of fermionic states…

图像与视频处理 · 电气工程与系统科学 2022-03-08 H. M. de Oliveira , V. V. Vermehren

Equations governing physico-chemical processes are usually known at microscopic spatial scales, yet one suspects that there exist equations, e.g. in the form of Partial Differential Equations (PDEs), that can explain the system evolution at…

机器学习 · 统计学 2021-03-31 Hassan Arbabi , Ioannis Kevrekidis

In multivariate regression, when covariates are numerous, it is often reasonable to assume that only a small number of them has predictive information. In some medical applications for instance, it is believed that only a few genes out of…

统计方法学 · 统计学 2022-07-12 Sylvain Sardy , Xiaoyu Ma