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200 篇论文

We classify all finite groups $G$ which possesses an element $x\in G$ such that every irreducible character of $G$ takes a root of unity value at $x$.

群论 · 数学 2022-09-19 Mark L. Lewis , Lucia Morotti , Hung P. Tong-Viet

The quantum Fourier transform (QFT) is a powerful tool in quantum computing. The main ingredients of QFT are formed by the Walsh-Hadamard transform H and phase shifts P(.), both of which are 2x2 unitary matrices as operators on the…

量子物理 · 物理学 2007-05-23 Charles M. Bowden , Goong Chen , Zijian Diao , Andreas Klappenecker

The \emph{metric dimension} of a graph $G$, denoted by $\dim(G)$, is the minimum number of vertices such that each vertex is uniquely determined by its distances to the chosen vertices. Let $G_1$ and $G_2$ be disjoint copies of a graph $G$…

组合数学 · 数学 2013-12-30 Linda Eroh , Cong X. Kang , Eunjeong Yi

Invertible disformal transformations serve as a useful tool to explore ghost-free scalar-tensor theories. In this paper, we construct a generalization of invertible disformal transformations that involves arbitrary higher-order covariant…

广义相对论与量子宇宙学 · 物理学 2023-10-19 Kazufumi Takahashi

The homogeneous transform has many practical applications outside the realm of mathematics, for instance to represent the proportions of several chemical substances. We aim here to present results about the transformation of measures, which…

泛函分析 · 数学 2016-10-10 Hubert Holin

It is shown that every concretizable category can be fully embedded into the category of accessible set functors and natural transformations.

范畴论 · 数学 2019-09-12 Libor Barto

We define the holomorphic Fourier transform of holomorphic functions on complex reductive groups, prove some properties like the Fourier inversion formula, and give some applications. The definition of the holomorphic Fourier transform…

群论 · 数学 2007-09-05 Jinpeng An , Zhengdong Wang , Min Qian

We give two general transformations that allows certain quite general basic hypergeometric multi-sums of arbitrary depth (sums that involve an arbitrary sequence $\{g(k)\}$), to be reduced to an infinite $q$-product times a single basic…

数论 · 数学 2019-01-09 James Mc Laughlin

The notion of ``fundamental constant'' is heavily theory-laden. A natural, fairly precise formulation is possible in the context of the standard model (here defined to include gravity). Some fundamental constants have profound geometric…

高能物理 - 唯象学 · 物理学 2007-09-03 Frank Wilczek

A conjecture in quantum mechanics states that any quantum canonical transformation can decompose into a sequence of three basic canonical transformations; gauge, point and interchange of coordinates and momenta. It is shown that if one…

数学物理 · 物理学 2015-05-13 T. Dereli , T. Hakioglu , A. Tegmen

The invariance of physical observables under disformal transformations is considered. It is known that conformal transformations leave physical observables invariant. However, whether it is true for disformal transformations is still an…

广义相对论与量子宇宙学 · 物理学 2016-06-20 Guillem Domènech , Atsushi Naruko , Misao Sasaki

A finite group $G$ is called $k$-factorizable if for every ordered factorization $|G|=a_1\cdots a_k$ into integers each greater than $1$ there exist subsets $A_1,\dots,A_k\subseteq G$ such that $|A_i|=a_i$ for each $i$ and $G=A_1\cdots…

群论 · 数学 2026-04-23 Mikhail Kabenyuk

The laws of physics have a set of fundamental constants, and it is generally admitted that only dimensionless combinations of constants have physical significance. These combinations include the electromagnetic and gravitational fine…

宇宙学与河外天体物理 · 物理学 2013-04-29 James Rich

We examine implications of angles having their own dimension, in the same sense as do lengths, masses, {\it etc.} The conventional practice in scientific applications involving trigonometric or exponential functions of angles is to assume…

综合物理 · 物理学 2022-09-14 Peter J. Mohr , Eric Shirley , William D. Phillips , Michael Trott

The Fourier transform of the indicator function of arbitrary polygons and polyhedra is computed for complex wavevectors. Using the divergence theorem and Stokes' theorem, closed expressions are obtained. Apparent singularities, all…

数学物理 · 物理学 2021-06-01 Joachim Wuttke

In particle physics, the fundamental forces are subject to symmetries called gauge invariance. It is a redundancy in the mathematical description of any physical system. In this article I will demonstrate that the transformer architecture…

机器学习 · 计算机科学 2024-12-20 Leo van Nierop

A group element is called a generalized torsion if a finite product of its conjugates is equal to the identity. We prove that in a nilpotent or FC-group, the generalized torsion elements are all torsion elements. Moreover, we compute the…

群论 · 数学 2025-08-28 Raimundo Bastos , Csaba Schneider , Danilo Silveira

Although it is well known that any consideration of the variations of fundamental constants should be restricted to their dimensionless combinations, the literature on variations of the gravitational constant $G$ is entirely dimensionful.…

宇宙学与河外天体物理 · 物理学 2012-06-28 Ali Narimani , Adam Moss , Douglas Scott

Fundamental constants are a cornerstone of the physical laws. Any constant varying in space and/or time would signal a violation of local position invariance and be associated with a violation of the universality of free fall, and hence of…

宇宙学与河外天体物理 · 物理学 2025-05-21 Jean-Philippe Uzan

As a generalization of the concept of a metric basis, this article introduces the notion of $k$-metric basis in graphs. Given a connected graph $G=(V,E)$, a set $S\subseteq V$ is said to be a $k$-metric generator for $G$ if the elements of…