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We provide new sufficient conditions under which Ryser's conjecture holds.

Number Theory · Mathematics 2025-09-03 Antun Domic , Luis H. Gallardo

The paper presents a counterexample to the Hodge conjecture.

General Mathematics · Mathematics 2020-07-28 Jorma Jormakka

New cases of the multiplicity conjecture are considered.

Commutative Algebra · Mathematics 2007-05-23 Juergen Herzog , Xinxian Zheng

In this paper, we give a counter-example, in the general case, Kronecker theorem will derive contradiction. Kronecker theorem be correct after removing some conditions.

General Mathematics · Mathematics 2023-05-16 JinHua Fei

We apply a conjectured inequality on third chern classes of stable two-term complexes on threefolds to Fujita's conjecture. More precisely, the inequality is shown to imply a Reider-type theorem in dimension three which in turn implies that…

Algebraic Geometry · Mathematics 2013-07-16 Arend Bayer , Aaron Bertram , Emanuele Macri , Yukinobu Toda

In this note, we establish the validity of a conjecture recently proposed in Mathematics Magazine and connect it to the existing interesting results

Probability · Mathematics 2025-04-22 Yaakov Malinovsky

In this paper, the abc conjecture is negated under certain conditions

General Mathematics · Mathematics 2025-03-19 JinHua Fei

We give a counterexample to a recently conjectured variant of the Penrose inequality.

Differential Geometry · Mathematics 2026-04-30 Sven Hirsch , Yipeng Wang

In this note we investigate the Cheltsov--Rubinstein conjecture. We show that this conjecture does not hold in general and some counterexamples will be presented.

Algebraic Geometry · Mathematics 2019-07-11 Kento Fujita , Yuchen Liu , Hendrik Süß , Kewei Zhang , Ziquan Zhuang

We show that the $\theta=\infty$ conjecture implies the Riemann hypothesis.

Number Theory · Mathematics 2016-09-06 Sandro Bettin , Steven M. Gonek

In this very short note, we give a counterexample to a recent conjecture of Gilmer which would have implied the union-closed conjecture.

Combinatorics · Mathematics 2022-11-23 David Ellis

We provide a broad class of counterexamples to a conjecture of L. de Branges concerning the superfluity of the continuity property in the axiomatic description of de Branges spaces.

Functional Analysis · Mathematics 2025-07-18 Igor Bereza

We prove a recent conjecture by Ulas on reducible polynomial substitutions.

Number Theory · Mathematics 2019-08-01 Peter Müller

The purpose of this short note is to present a simplified proof of Serre's modularity conjecture using the strong modularity lifting results currently available. This second version includes extra details on definitions and proofs than the…

Number Theory · Mathematics 2022-05-04 Luis Victor Dieulefait , Ariel Martín Pacetti

In this paper, we prove a conjecture of Schnell in the surface case.

Algebraic Geometry · Mathematics 2024-02-27 Jun Lu , Wan-Yuan Xu

In this short survey article, we aim to provide an up to date information on the progress made towards Schurs exponent conjecture and related conjectures. We also mention the connection between Schurs exponent conjecture and Noether's…

Group Theory · Mathematics 2020-08-04 Viji Z Thomas

The two-functional conjecture says that if a function f analytic and univalent in the unit disk maximizes Re{L} and Re{M} for two continuous linear functionals L and M, L is not equal to cM for any c>0, then f is a rotation of the Koebe…

Complex Variables · Mathematics 2012-10-16 Dmitri Prokhorov

This paper takes a new step in the direction of proving the Duffin-Schaeffer Conjecture for measures arbitrarily close to Lebesgue. The main result is that under a mild `extra divergence' hypothesis, the conjecture is true.

Number Theory · Mathematics 2012-01-06 Victor Beresnevich , Glyn Harman , Alan Haynes , Sanju Velani

We prove the Burghelea Conjecture for groups satisfying some additional cohomological property.

K-Theory and Homology · Mathematics 2017-03-23 Alexander Dranishnikov

In this note, we show that a part of [5, Remark 2.2] is not correct. Some conditions are given under which the same holds.

Commutative Algebra · Mathematics 2020-05-18 Rahul Kumar , Atul Gaur
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