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Related papers: A note on an Counter Example of Dacorogna

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We look at an old conjecture of A. Tarski on cardinal arithmetic and show that if a counterexample exists, then there exists one of length omega_1 + omega .

Logic · Mathematics 2009-09-25 Thomas Jech , Saharon Shelah

A short, fairly self-contained proof is given of the Poincar\'e Conjecture. In the previous version there was an error on Page 8. This gap has now been filled.

General Mathematics · Mathematics 2025-09-26 M. J. Dunwoody

Using Singular Rescaling We Prove Some Bifurcation Results. This note Presents short proofs for some Bifurcation results which had been appeared with other authors.

Dynamical Systems · Mathematics 2024-04-16 Ali Taghavi

Drawing inspiration from both the classical Guerino Mazzola's symmetry-based model for first-species counterpoint (one note against one note) and Johann Joseph Fux's "Gradus ad Parnassum", we propose an extension for second-species (two…

History and Overview · Mathematics 2022-07-06 Octavio A. Agustín-Aquino , Guerino Mazzola

The note contains the proof of the uniqueness theorem for the inverse problem in the case of $n$-th order differential equation.

Spectral Theory · Mathematics 2007-05-23 Azamat M. Akhtyamov

In this recent Letter [1], we studied the implications of string Swampland conjectures for quintessence models of dark energy. A couple of days ago, a paper appeared [2] which refers to our work but misrepresents what we have done. Here, we…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-05 Lavinia Heisenberg , Matthias Bartelmann , Robert Brandenberger , Alexandre Refregier

New cases of the multiplicity conjecture are considered.

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

In this note, we derive a Leibniz rule for difference quotient.

Number Theory · Mathematics 2026-02-03 Taekyun Kim , Dae san Kim

In this short note we give an interpretation of the Kirchheim-Magnani counterexample to metric differentiability in terms of dilatation structures.

Metric Geometry · Mathematics 2007-10-09 Marius Buliga

In this short note, we point out a mistake in G.Cybenko's proof of his version of the universal approximation theorem which has been widely cited. This mistake might not be easily fixable along the idea of his proof and it also leads to an…

Classical Analysis and ODEs · Mathematics 2025-12-08 Kun Wang

In this note we obtain a new convergence result for the Adomian decomposition method.

General Mathematics · Mathematics 2019-06-18 Hicham Zoubeir

We give a counterexample to the PIA (precise inversion of adjunction) conjecture for minimal log discrepancies. We also give a counterexample to the LSC conjecture for families.

Algebraic Geometry · Mathematics 2026-05-01 Yusuke Nakamura , Kohsuke Shibata

After reconsidering the Dasbach-Hougardy counterexample to the Kauffman Conjecture on alternating knots, we reformulate the conjecture and consider Dasbach-Hougardy counterexample and similar counterexamples in the light of the reformulated…

Geometric Topology · Mathematics 2015-03-17 Louis H. Kauffman , Slavik V. Jablan

We give an explicit counterexample to an entanglement inequality suggested in a recent paper [quant-ph/0005126] by Benatti and Narnhofer. The inequality would have had far-reaching consequences, including the additivity of the entanglement…

Quantum Physics · Physics 2007-05-23 R. F. Werner , K. G. H. Vollbrecht

We obtain simple proofs of certain inequalites for bivariate means.

Classical Analysis and ODEs · Mathematics 2011-05-04 Jozsef Sandor

We appended an errata to the original submission. The purpose of this errata is to point out two errors in [2] and give a weakened version of those statements made.

Probability · Mathematics 2024-07-02 Erhan Bayraktar , Gaoyue Guo

In this note I provide two extensions of a particular case of the classical Poncelet theorem.

Algebraic Geometry · Mathematics 2020-10-07 Ciro Ciliberto

We give a counter-example to Theorem B for dagger quasi-Stein spaces.

Algebraic Geometry · Mathematics 2025-10-02 Federico Bambozzi , Christopher Lazda

We give a brief historical overview of the famous Pythagoras' theorem and Pythagoras. We present a simple proof of the result and dicsuss some extensions. We follow \cite{thales}, \cite{wiki} and \cite{wiki2} for the historical comments and…

History and Overview · Mathematics 2015-09-23 Manjil P. Saikia

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