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We determine the constructive dimension of points in random translates of the Cantor set. The Cantor set "cancels randomness" in the sense that some of its members, when added to Martin-Lof random reals, identify a point with lower…

Computational Complexity · Computer Science 2021-02-09 Randall Dougherty , Jack Lutz , R. Daniel Mauldin , Jason Teutsch

We review recent progress in the fractional Calder\'on problem, where one tries to determine an unknown coefficient in a fractional Schr\"odinger equation from exterior measurements of solutions. This equation enjoys remarkable uniqueness…

Analysis of PDEs · Mathematics 2018-02-16 Mikko Salo

In this paper we present an algorithm to find the discrete Lagrangian for an autonomous recurrence relation of arbitrary even order $2k$ with $k>1$. The method is based on the existence of a set of differential operators called annihilation…

Mathematical Physics · Physics 2019-10-28 G. Gubbiotti

We give a necessary and sufficient condition to achieve the most uncertain exponent in the fractal uncertainty principle of discrete Cantor sets. The condition will be described as distributed spectral pairs, which is a generalization of…

Classical Analysis and ODEs · Mathematics 2025-01-03 Chun-Kit Lai , Ruxi Shi

A probability measure in R^d is called a spectral measure if it has an orthonormal basis consisting of exponentials. In this paper we study spectral Cantor measures. We establish a large class of such measures and give a necessary and…

Classical Analysis and ODEs · Mathematics 2007-05-23 Izabella Laba , Yang Wang

We study the problem of self-energy of pointlike charges in higher dimensional static spacetimes. Their energy, as a functional of the spacetime metric, is invariant under a specific continuous transformation of the metric. We show that the…

High Energy Physics - Theory · Physics 2015-06-05 Valeri P. Frolov , Andrei Zelnikov

It is proved that the class of separable Rosenthal compacta on the Cantor set having a uniformly bounded dense sequence of continuous functions, is strongly bounded.

Logic · Mathematics 2008-05-15 Pandelis Dodos

We provide $q$-moment estimates on annuli for weak solutions of the singular $p$-Laplace equation where $p$ and $q$ are conjugates. We derive $q$-uniform integrability for some critical parameter range. As a application, we derive a mass…

Analysis of PDEs · Mathematics 2021-03-10 Samuel Drapeau , Liming Yin

Many real life problems can be reduced to the solution of a complex exponentials approximation problem which is usually ill posed. Recently a new transform for solving this problem, formulated as a specific moments problem in the plane, has…

Numerical Analysis · Mathematics 2012-05-03 Piero Barone

We prove local unique solvability of the wave equation for a large class of weakly singular, locally bounded space-time metrics in a suitable space of generalised functions.

Mathematical Physics · Physics 2009-02-11 James D. E. Grant , Eberhard Mayerhofer , Roland Steinbauer

We Define moments of partitions of integers, and show that they appear in higher order derivatives of certain combinations of functions.

Combinatorics · Mathematics 2020-11-24 Shaul Zemel

In 1984, Kurt Mahler posed the following fundamental question: How well can irrationals in the Cantor set be approximated by rationals in the Cantor set? Towards development of such a theory, we prove a Dirichlet-type theorem for this…

Number Theory · Mathematics 2011-11-21 Ryan Broderick , Lior Fishman , Asaf Reich

Inspired by Quantum Mechanics, we reformulate Hilbert's tenth problem in the domain of integer arithmetics into problems involving either a set of infinitely-coupled non-linear differential equations or a class of linear Schr\"odinger…

General Mathematics · Mathematics 2007-05-23 Tien D. Kieu

The large moment method can be used to compute a large number of moments of physical quantities that are described by coupled systems of linear differential equations. Besides these systems the algorithm requires a certain number of initial…

Symbolic Computation · Computer Science 2019-12-11 Johannes Blümlein , Peter Marquard , Carsten Schneider

We introduce the concept of singular values for the Riemann curvature tensor, a central mathematical tool in Einstein's theory of general relativity. We study the properties related to the singular values, and investigate five typical cases…

Differential Geometry · Mathematics 2018-07-24 Xiaokai He , Hua Xiang

It is known that singular values of idempotent matrices are either zero or larger or equal to one \cite{HouC63}. We state exactly how many singular values greater than one, equal to one, and equal to zero there are. Moreover, we derive a…

Numerical Analysis · Mathematics 2024-03-11 Heike Faßbender , Martin Halwaß

We first propose what we call the Gaussian Moments Conjecture. We then show that the Jacobian Conjecture follows from the Gaussian Moments Conjecture. We also give a counter-example to a more general statement known as the Moments Vanishing…

Commutative Algebra · Mathematics 2022-08-12 Harm Derksen , Arno van den Essen , Wenhua Zhao

We consider the numerical evaluation of a class of double integrals with respect to a pair of self-similar measures over a self-similar fractal set (the attractor of an iterated function system), with a weakly singular integrand of…

Numerical Analysis · Mathematics 2023-09-07 Andrew Gibbs , David P. Hewett , Botond Major

We show that a perturbed Coulomb problem discussed recently is conditionally solvable. We obtain the exact eigenvalues and eigenfunctions and compare the former with eigenvalues calculated by means of a numerical method. We discuss the…

Quantum Physics · Physics 2024-10-02 Francisco M. Fernández

We prove that the inverse scattering problem for the Schr\"odinger operator with the separable potential can be reduced to the solving of a certain singular integral equation. We establish the uniqueness of the potential corresponding to…

Mathematical Physics · Physics 2007-05-23 Yu. P. Chuburin
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