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We prove that a refinement of Stark's Conjecture formulated by Rubin is true up to primes dividing the order of the Galois group, for finite, abelian extensions of function fields over finite fields. We also show that in the case of…

Number Theory · Mathematics 2016-09-07 Cristian D. Popescu

In this article we prove a theorem that will generalize the concurrence theorems that are leading to the Franke's point, Kariya's point, and to other remarkable points from the triangle geometry.

General Mathematics · Mathematics 2010-08-17 Claudiu Coanda , Florentin Smarandache , Ion Patrascu

We prove some new results related to Tanaka's formula.

Probability · Mathematics 2017-09-19 Gianluca Cassese

We revamp the existing theory of Euler class groups and present them in as much generality as possible. We remark on two results of Asok-Fasel and indicate some improvements.

Commutative Algebra · Mathematics 2019-01-31 Mrinal Kanti Das

The purpose of this paper is to present a generalization of Forelli's theorem. In particular, we prove an all dimensional version of the two-dimensional theorem of Chirka of 2005.

Complex Variables · Mathematics 2011-09-15 Jae-Cheon Joo , Kang-Tae Kim , Gerd Schmalz

We combine the two fundamental fixed-order tangle theorems of Robertson and Seymour into a single theorem that implies both, in a best possible way. We show that, for every $k \in \mathbb{N}$, every tree-decomposition of a graph $G$ which…

Combinatorics · Mathematics 2026-05-06 Sandra Albrechtsen

The assumptions needed to prove Cox's Theorem are discussed and examined. Various sets of assumptions under which a Cox-style theorem can be proved are provided, although all are rather strong and, arguably, not natural.

Artificial Intelligence · Computer Science 2007-05-23 Joseph Y. Halpern

Extending the idea in [Impagliazzo, R., Moore, C. and Russell, A., An entropic proof of Chang's inequality. SIAM Journal on Discrete Mathematics, 28(1), pp.173-176.] we give a short information theoretic proof for Chang's lemma that is…

Discrete Mathematics · Computer Science 2020-05-25 Lianna Hambardzumyan , Yaqiao Li

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

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

An technically interesting proof of a known theorem.

Analysis of PDEs · Mathematics 2007-05-23 Andreas Wannebo

We modify the proof of the basic lemma of a paper of Saks and Zygmund on additive functions of rectangles.

Analysis of PDEs · Mathematics 2025-03-31 Julià Cufí , Juan J. Donaire

In this paper we shall prove a sharpened version of the Finsler-Hadwiger inequality which is a strong generalization of Weitzenbock inequality. After that we give another refinement of this inequality and in the final part we provide some…

Metric Geometry · Mathematics 2009-04-26 Cezar Lupu , Cosmin Pohoata

The object of this paper is to generalize a theorem on the binomial coefficient [4] to the case in an arithmetic progression. We will also give a slightly stronger result than Langevin's [2].

General Mathematics · Mathematics 2009-09-15 Shaohua Zhang

We give a concise proof of the fundamental theorem of smoothing theory in the special case when a smoothing exists.

Algebraic Topology · Mathematics 2010-07-09 John R. Klein , Bruce Williams

In this paper, by making use of one of Chen's theorems and the method of mathematical analysis, we refine Edwards-Child's inequality and solve a conjecture posed by Liu.

Metric Geometry · Mathematics 2010-07-19 Yudong Wu , Zhihua Zhang , Zhigang Wang

In this paper we show an index theorem for gerbes

Differential Geometry · Mathematics 2007-05-23 Aristide Tsemo , Isaac Woungang

We give a proof of the Marker-Steinhorn Theorem which fills a gap in previous proofs of the result.

Logic · Mathematics 2025-04-29 Pablo Andújar Guerrero

This report presents a formalization of May's theorem in the proof assistant Coq. It describes how the theorem statement is first translated into Coq definitions, and how it is subsequently proved. Various aspects of the proof and related…

Logic in Computer Science · Computer Science 2022-10-12 Kwing Hei Li

In this note we give a detailed proof of a theorem of Aubin.

Differential Geometry · Mathematics 2013-03-15 Farid Madani

We give a short proof of a theorem of J.-E. Pin (theorem 1.1 below), which can be found in his thesis. The part of the proof which is my own (not Pin's) is a complete replacement of the same part in an earlier version of this paper.

Formal Languages and Automata Theory · Computer Science 2022-09-16 Michiel de Bondt