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A second-order $L$-stable exponential time-differencing (ETD) method is developed by combining an ETD scheme with approximating the matrix exponentials by rational functions having real distinct poles (RDP), together with a dimensional…

数值分析 · 数学 2020-06-24 E. O. Asante-Asamani , A. Kleefeld , B. A. Wade

We present an algorithm of the reduction of the differential equations for master integrals the Fuchsian form with the right-hand side matrix linearly depending on dimensional regularization parameter $\epsilon$. We consider linear…

高能物理 - 唯象学 · 物理学 2015-05-20 Roman N. Lee

We present a new approach to proving non-termination of non-deterministic integer programs. Our technique is rather simple but efficient. It relies on a purely syntactic reversal of the program's transition system followed by a…

编程语言 · 计算机科学 2021-04-06 Krishnendu Chatterjee , Ehsan Kafshdar Goharshady , Petr Novotný , Đorđe Žikelić

The generalized number-theoretic transformation (NPT) is formulated on the basis of the exponential function theorem, which allows us to replace operations modulo the expression as a whole by modulo operations on the exponent of this…

综合数学 · 数学 2020-11-24 M. V. Semotiuk

We provide a simple approach for the evaluation of inverse integral transforms that does not require any knowledge of complex analysis. The central idea behind the method is to reduce the inverse transform to the solution of an ordinary…

物理教育 · 物理学 2015-05-30 Aaron Farrell , Brandon P. van Zyl , Zachary MacDonald

We present an algorithm based on the alternating direction method of multipliers (ADMM) for solving nonlinear matrix decompositions (NMD). Given an input matrix $X \in \mathbb{R}^{m \times n}$ and a factorization rank $r \ll \min(m, n)$,…

信号处理 · 电气工程与系统科学 2025-12-23 Atharva Awari , Nicolas Gillis , Arnaud Vandaele

Solution of the discretized Lippmann-Schwinger equation in the spatial frequency domain involves the inversion of a linear operator specified by the scattering potential. To regularize this inevitably ill-conditioned problem, we propose a…

计算物理 · 物理学 2020-10-30 Subeen Pang , George Barbastathis

We study the cross-entropy method (CEM) for the non-convex optimization of a continuous and parameterized objective function and introduce a differentiable variant that enables us to differentiate the output of CEM with respect to the…

机器学习 · 计算机科学 2020-08-18 Brandon Amos , Denis Yarats

A large family of linear, usually overdetermined, systems of partial differential equations that admit a multiplication of solutions, i.e, a bi-linear and commutative mapping on the solution space, is studied. This family of PDE's contains…

偏微分方程分析 · 数学 2008-03-19 Jens Jonasson

This paper presents an approach for the development of a number theoretic discrete Hilbert transform. The forward transformation has been applied by taking the odd reciprocals that occur in the DHT matrix with respect to a power of 2.…

离散数学 · 计算机科学 2009-11-13 Renuka Kandregula

Efficient algorithms are known for many operations on truncated power series (multiplication, powering, exponential, ...). Composition is a more complex task. We isolate a large class of power series for which composition can be performed…

符号计算 · 计算机科学 2013-06-19 Alin Bostan , Bruno Salvy , Éric Schost

We establish a new generalized Taylor's formula for power fractional derivatives with nonsingular and nonlocal kernels, which includes many known Taylor's formulas in the literature. Moreover, as a consequence, we obtain a general version…

谱理论 · 数学 2024-01-29 Hanaa Zitane , Delfim F. M. Torres

The theory of matrix splitting is a useful tool for finding solution of rectangular linear system of equations, iteratively. The purpose of this paper is two-fold. Firstly, we revisit theory of weak regular splittings for rectangular…

数值分析 · 数学 2016-08-23 Debasisha Mishra

We consider finite approximations of a fractal generated by an iterated function system of affine transformations on $\mathbb{R}^d$ as a discrete set of data points. Considering a signal supported on this finite approximation, we propose a…

泛函分析 · 数学 2016-07-14 Calvin Hotchkiss , Eric S. Weber

In this brief, we discuss the implementation of a third order semi-implicit differentiator as a complement of the recent work by the author that proposes an interconnected semi-implicit Euler double differentiators algorithm through Taylor…

数值分析 · 数学 2024-08-02 Loïc Michel , Jean-Pierre Barbot

The method of Taylor series expansion is used to develop a numerical solution to the reactor point kinetics equations. It is shown that taking a first order expansion of the neutron density and precursor concentrations at each time step…

计算物理 · 物理学 2013-04-03 David McMahon , Adam Pierson

The matrix expressions for every parts of a transformer are firstly described. Based on semi-tensor product (STP) of matrices the hypervectors are reconsidered and the linear transformation over hypervectors is constructed by using…

机器学习 · 计算机科学 2025-04-22 Daizhan Cheng

Discrete Token Modeling (DTM), which employs vector quantization techniques, has demonstrated remarkable success in modeling non-natural language modalities, particularly in time series generation. While our prior work SDformer established…

机器学习 · 计算机科学 2026-04-07 Shibo Feng , Zhicheng Chen , Xi Xiao , Zhong Zhang , Qing Li , Xingyu Gao , Peilin Zhao

Discriminating data classes emanating from sensors is an important problem with many applications in science and technology. We describe a new transform for pattern identification that interprets patterns as probability density functions,…

计算机视觉与模式识别 · 计算机科学 2017-02-15 Se Rim Park , Soheil Kolouri , Shinjini Kundu , Gustavo Rohde

Making use of inverse Mellin transform techniques for analytical continuation, an elegant proof and an extension of the zeta function regularization theorem is obtained. No series commutations are involved in the procedure; nevertheless the…

高能物理 - 理论 · 物理学 2007-05-23 E. Elizalde , S. Leseduarte , S. Zerbini