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We establish some new generalizations of Erd\H{o}s-Mordell inequality by adding weights to its terms. Using these generalizations, we derived strengthened versions of the original Erd\H{o}s-Mordell inequality. We also found two other…

History and Overview · Mathematics 2021-05-18 Tran Quang Hung

I review what we have learned about the BLR from reverberation mapping, point to some problems and complications that have emerged, and outline some future directions.

Astrophysics · Physics 2007-05-23 Dan Maoz

Creative processes are widely believed to involve the generation of multiple, discrete, well-defined possibilities followed by exploration and selection. An alternative, inspired by parallel distributed processing models of associative…

Neurons and Cognition · Quantitative Biology 2019-07-11 Liane Gabora , Adam Saab

The Paulsen Problem in Hilbert space frame theory has proved to be one of the most intractable problems in the field. We will help explain why by showing that this problem is equivalent to a fundamental, deep problem in operator theory.…

Functional Analysis · Mathematics 2011-04-05 Peter G. Casazza , Jameson Cahill

We consider the problem of perfectly recovering the vertex correspondence between two correlated Erd\H{o}s-R\'enyi (ER) graphs. For a pair of correlated graphs on the same vertex set, the correspondence between the vertices can be obscured…

Information Theory · Computer Science 2016-02-03 Daniel Cullina , Negar Kiyavash

This paper is an extension program of the notion of circle of partition developed in our first paper \cite{CoP}. As an application we prove the Erd\H{o}s-Tur\'{a}n additive base conjecture.

Number Theory · Mathematics 2024-03-12 Theophilus Agama

We present some recent results on the existence of solutions of the Schr\"odinger flows, and pose some problems for further research.

Analysis of PDEs · Mathematics 2007-05-23 Weiyue Ding

At the heart of both black hole physics and Wigner's friend scenarios lies the question of unitarity. In Wigner's friend setups, sealed-lab measurements are modeled unitarily, probing the measurement problem. In black hole physics, the…

General Relativity and Quantum Cosmology · Physics 2026-02-23 Laurens Walleghem

In this paper, we will continue the investigation of Waring's problem, and give further improvements.

Combinatorics · Mathematics 2025-01-15 An-Ping Li

I would like to thank Junk and Lyons (arXiv:2009.06864) for beginning a discussion about replication in high-energy physics (HEP). Junk and Lyons ultimately argue that HEP learned its lessons the hard way through past failures and that…

Data Analysis, Statistics and Probability · Physics 2021-05-10 Andrew Fowlie

Erd\H{o}s and Graham (Erd\H{o}s and Graham, 1980) asked if there exists an $n$ such that the divisors of $n$ greater than 1 are the moduli of a distinct covering system with the following property: If there exists an integer which satisfies…

Number Theory · Mathematics 2025-12-04 Sarosh Adenwalla

I begin with an anecdote, and then discuss my recent work on anomalies in spin-$\frac{3}{2}$ theories.

High Energy Physics - Theory · Physics 2019-10-10 Stephen L. Adler

These informal notes deal with a number of questions related to sums and integrals in analysis.

Classical Analysis and ODEs · Mathematics 2010-08-17 Stephen Semmes

The physics of matter in the condensed state is concerned with problems in which the number of constituent particles is vastly greater than can be easily comprehended. The inherent physical limitations of the human mind are fundamental and…

History and Philosophy of Physics · Physics 2016-04-26 S. J. Blundell

Personal recollections about Alexandre Grothendieck and early days of his theory of motives

History and Overview · Mathematics 2014-07-02 Yuri I. Manin

We make a few remarks on possible sources of uncertainties of the $\bar d - \bar u$ asymmetry obtained by different methods and comment on its possible verification in the future. In addition we comment on its present understanding.

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Szczurek , V. Uleshchenko

The past year has seen an explosion of new and old ideas about black hole physics. Prior to the firewall paper, the dominant picture was the thermofield model apparently implied by ADS/CFT duality\cite{mal2}. While some seek a narrow…

General Relativity and Quantum Cosmology · Physics 2014-03-14 Michael Devin

Errors in Eberly's derivation of several Bell inequalities are pointed out: (1) it is based on an equation that is incorrect; (2) it uses neither two-particle states nor locality to derive Bell's inequalities and; (3) it does not use…

Quantum Physics · Physics 2009-02-11 Luiz Carlos Ryff

In this article, we tackle the math word problem, namely, automatically answering a mathematical problem according to its textual description. Although recent methods have demonstrated their promising results, most of these methods are…

Computation and Language · Computer Science 2021-09-28 Shifeng Huang , Jiawei Wang , Jiao Xu , Da Cao , Ming Yang

The majority of extensions to General Relativity display mathematical pathologies (higher derivatives, character change in equations that can be classified within PDE theory, and even unclassifiable ones) that cause severe difficulties to…

General Relativity and Quantum Cosmology · Physics 2025-05-08 Ramiro Cayuso , Pau Figueras , Tiago França , Luis Lehner