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Related papers: Correction to "minimal unit vector fields"

200 papers

On [3, p. 199] one says "We mention parenthetically that the proof of [99, Lemma 41.3] is incorrect, and we do not know whether it, [99, Theorem 41.5] and [99, Theorem 41.6] are true". The previously cited reference [99] is our reference…

Functional Analysis · Mathematics 2009-10-21 M. D. Voisei

Logarithmic conformal field theories are based on vertex algebras with non-semisimple representation categories. While examples of such theories have been known for more than 25 years, some crucial aspects of local logarithmic CFTs have…

High Energy Physics - Theory · Physics 2021-07-28 Jürgen Fuchs , Christoph Schweigert

We show that a unit vector field on an oriented Riemannian manifold is a critical point of the Landau Hall functional if and only if it is a critical point of the Dirichlet energy functional. Therefore, we provide a characterization for a…

Differential Geometry · Mathematics 2023-02-24 Jun-ichi Inoguchi , Marian Ioan Munteanu

We introduce generalized pinning fields in conformal field theory that model a large class of critical impurities at large distance, enriching the familiar universality classes. We provide a rigorous definition of such defects as certain…

High Energy Physics - Theory · Physics 2025-04-09 Fedor K. Popov , Yifan Wang

We correct an error in a technical lemma of Drees and Rootz\'en (2010) [arXiv:0910.0343] and discuss consequences for applications.

Statistics Theory · Mathematics 2015-11-02 Holger Drees , Holger Rootzén

This very short correction notes a gap in an argument of an earlier paper, and also provides a theorem of similar flavor to the main result of that paper.

Group Theory · Mathematics 2022-09-27 Samuel M. Corson

This paper has been withdrawn due to a crucial theoretical error.

In this paper, we define Euclidean minima for function fields and give some bound for this invariant. We furthermore show that the results are analogous to those obtained in the number field case.

Number Theory · Mathematics 2013-11-11 Piotr Maciak , Marina Monsurrò , Leonardo Zapponi

We show that, for a certain large class of power-bounded $o$-minimal $\mathcal{L}_T$-theories $T$ whose field of exponents is infinite-dimensional as a vector space over the rationals, any definable set in a $T$-convex valued field…

Logic · Mathematics 2018-12-11 Yimu Yin

We prove inequalities that compare the regulator of a number field with its absolute discriminant. We refine some ideas in Silverman's work in 1984 where such general inequalities are first proven. In order to prove our main theorems, we…

Number Theory · Mathematics 2022-07-19 Shabnam Akhtari , Jeffrey D. Vaaler

The aim of this paper is two-fold: (1) introduce four systems of equations called M-systems and dual M-systems of types $A_{n}$ and $B_{n}$ respectively; (2) make a connection between M-systems (dual M-systems) and cluster algebras and…

Quantum Algebra · Mathematics 2017-07-11 Qian-Qian Zhang , Bing Duan , Jian-Rong Li , Yan-Feng Luo

The original versions (1 and 2) of this paper paper contain a fatal error. All my attempts to patch the error have failed. As a service to the community I explain the error in some detail.

Quantum Physics · Physics 2015-06-03 Mladen Pavicic

We are going to use the Euler's vector fields in order to show that for real quasi-homogeneous singularities with isolated critical value, the Milnor's fibration in a "thin" hollowed tube involving the zero level and the fibration in the…

Geometric Topology · Mathematics 2016-05-09 R. Araujo dos Santos

The original paper, as published in Nuclear Physics B in 1988, had a few factor-of-two errors. Some people got confused by those errors. The purpose of these errata is to make things clear. The revised version of the complete article is…

High Energy Physics - Theory · Physics 2007-05-23 Vadim Kaplunovsky

This version corrects a number of mistakes that appeared in the previous draft. In particular, the (EU-LREM) condition is sufficient for existence and uniqueness but not necessary, as we had claimed. We are grateful to P. C. B. Phillips and…

Statistics Theory · Mathematics 2025-04-15 Majid M. Al-Sadoon , Piotr Zwiernik

Theorem 2 of A. Kercheval, "Denjoy minimal sets are far from affine", Ergodic Theory and Dynamical Systems 22 (2002), 1803-1812 is corrected by adding a C^2 bound to the hypotheses.

Dynamical Systems · Mathematics 2010-04-09 Alec N. Kercheval

We classify, up to a natural equivalence relation, vector fields of the plane which belong to the kernel of a 1--form. This form can be closed, in which case the vector fields are integrable, or not, in which case the differential of the…

Dynamical Systems · Mathematics 2024-11-13 Stavros Anastassiou

Starting with the Brezis-Browder principle, we give stronger versions of many variational principles and minimal element theorems which appeared in the recent literature. Relationships among the elements of different sets of assumptions are…

Functional Analysis · Mathematics 2018-06-01 Andreas H Hamel , Constantin Zalinescu

The "unit theorem" to which the present mini-course is devoted is a theorem from algebra that has a combinatorial flavour, and that originated in fact from algebraic combinatorics. Beyond a proof, the course also addresses applications, one…

Rings and Algebras · Mathematics 2017-03-22 Hendrik Lenstra

We study the existence of minimal networks in the unit sphere $\mathbf{S}^d$ and the unit ball $\mathbf{B}^d$ of $\mathbf{R}^d$ endowed with Riemannian metrics close to the standard ones. We employ a finite-dimensional reduction method,…

Differential Geometry · Mathematics 2024-01-25 Luciano Sciaraffia