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Continued fractions are used to give an alternate proof of $e^{x/y}$ is irrational.

History and Overview · Mathematics 2021-04-14 Sourangshu Ghosh

Cox's well-known theorem justifying the use of probability is shown not to hold in finite domains. The counterexample also suggests that Cox's assumptions are insufficient to prove the result even in infinite domains. The same…

Artificial Intelligence · Computer Science 2011-05-30 J. Y. Halpern

In this paper, we present a minimal counterexample to a conjecture of Perles that answers a question of Haase and Ziegler. The example is a simple 4-polytope that has an induced 3-connected 3-regular subgraph, whose graph complement is…

Combinatorics · Mathematics 2018-09-10 Joseph Doolittle

In this paper we give a complete proof of the Brumer-Stark conjecture over $\mathbf{Z}$.

Number Theory · Mathematics 2023-10-26 Samit Dasgupta , Mahesh Kakde , Jesse Silliman , Jiuya Wang

The conjecture of Masser-Oesterl\'e, popularly known as $abc$-conjecture have many consequences. We use an explicit version due to Baker to solve a number of conjectures.

Number Theory · Mathematics 2011-12-13 Shanta Laishram , T. N. Shorey

Some simple facts are proved ruling the Collatz tree and the chains of vertices appearing in it, leading to the reduction of the number of significant elements appearing in the tree. Although the Collatz conjecture remains open, these fact…

General Mathematics · Mathematics 2020-07-07 Fabrizio Luccio

Using geometric homology and cohomology we give a simple and conceptual proof of the Thom isomorphism theorem.

Algebraic Topology · Mathematics 2007-05-23 Martin Jakob

Instantaneous derivation of the Thomas precession with only basic vector calculus.

Classical Physics · Physics 2012-11-21 Andrzej Dragan , Tomasz Odrzygóźdź

In this paper we present three simple applications of probability and highlight and discuss their paradoxical flavour.

History and Overview · Mathematics 2007-05-24 Germano D'Abramo , Barbara D'Abramo

Another counter-example to Dirac's Conjecture is presented, which resembles the Cawley model but is so modified as to include second class constraints. The arbitrary function in the general solution to the defining equations of momenta…

Classical Physics · Physics 2019-02-26 Takayuki Hori

The goal of this note is to affirm a local version of the conjecture of Nisse--Sottile [NS16] on higher convexity of complements of tropical varieties, while providing a family of counter-examples for the global Nisse--Sottle conjecture in…

Algebraic Geometry · Mathematics 2018-09-12 Karim Adiprasito , Farhad Babaee

A proof of Sendov's conjecture is given.

Complex Variables · Mathematics 2007-05-23 Gerald Schmieder

We provide a simple proof of Kamp's theorem.

Logic in Computer Science · Computer Science 2015-07-01 Alexander Rabinovich

The better title is "Yet another FALSE proof of the 4-colour theorem." Please consider all versions of this paper as historical material on the way to a non-computer proof of the 4-colour theorem. Interpreted as proofs, all versions are…

General Mathematics · Mathematics 2009-05-22 Peter Doerre

We give a simple proof of a recent result by J. Schleischitz dealing with a counterexample to the uniform Littlewood conjecture. Our construction is based on simple properties of Fibonacci numbers.

Number Theory · Mathematics 2026-05-27 Nikolay Moshchevitin

Using algebraic transformations and equivalent reformulations we derive a number of new results from some earlier ones (by the author) in more accepted terms closely related to well-known conjectures of Bondy and Jung including a number of…

Combinatorics · Mathematics 2014-05-08 Zh. G. Nikoghosyan

We formulate a precise conjecture that, if true, extends the converse theorem of Hecke without requiring hypotheses on twists by Dirichlet characters or an Euler product. The main idea is to linearize the Euler product, replacing it by…

We study an extension of Montgomery's pair-correlation conjecture and its relevance in some problems on the distribution of prime numbers.

Number Theory · Mathematics 2016-08-03 Alessandro Languasco , Alberto Perelli , Alessandro Zaccagnini

We prove inversion of adjunction on log canonicity.

Algebraic Geometry · Mathematics 2009-11-11 Masayuki Kawakita

As a first application of a very old theorem, known as Herschel's theorem, we provide direct elementary proofs of several explicit expressions for some numbers and polynomials that are known in combinatorics. The second application deals…

Number Theory · Mathematics 2012-05-08 Lazhar Fekih-Ahmed