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We give a more strong heuristic justification of our conjecture on the excess of the odious primes.

Number Theory · Mathematics 2011-11-10 Vladimir Shevelev

I discuss the computational methods behind the formulation of some conjectures related to variants on Andrews' $q$-Dyson conjecture.

Combinatorics · Mathematics 2018-12-19 Andrew V. Sills

In this paper, we investigate a number of $q$-supercongruences on double and triple sums. By means of a lemma devised by El Bachraoui and its generalization, we transform some $q$-supercongruences on double and triple sums into the…

Number Theory · Mathematics 2021-12-21 Xiaoxia Wang , Chang Xu

We have primarily obtained three results on numbers of the form $p + 2^k$. Firstly, we have constructed many arithmetic progressions, each of which does not contain numbers of the form $p + 2^k$, disproving a conjecture by Erd\H{o}s as Chen…

Number Theory · Mathematics 2024-02-13 Yuda Chen , Xiangjun Dai , Huixi Li

We consider two recent conjectures of Harrington, Henninger-Voss, Karhadkar, Robinson and Wong concerning relationships between the sum index, difference index and exclusive sum number of graphs. One conjecture posits an exact relationship…

Combinatorics · Mathematics 2023-03-22 John Haslegrave

We establish a supercongruence conjectured by Almkvist and Zudilin, by proving a corresponding $q$-supercongruence. Similar $q$-supercongruences are established for binomial coefficients and the Ap\'{e}ry numbers, by means of a general…

Number Theory · Mathematics 2019-12-03 Ofir Gorodetsky

We confirm several conjectures of Guo, Jouhet and Zeng concerning the factors of alternative binomials sums.

Number Theory · Mathematics 2009-06-16 Hui-Qin Cao , Hao Pan

A proof of Sendov's conjecture is given.

Complex Variables · Mathematics 2007-05-23 Gerald Schmieder

In this article, we give proofs on the Arnold Lagrangian intersection conjecture on the cotangent bundles, Arnold-Givental Lagrangian intersection conjecture and the Arnold fixed point conjecture.

Symplectic Geometry · Mathematics 2013-07-08 Renyi Ma

In this note we give a counterexample to a conjecture proposed by Ciliberto about special linear systems of P^n through multiple base points.

Algebraic Geometry · Mathematics 2007-05-23 Antonio Laface , Luca Ugaglia

We provide a counterexample to P.~Olver's freeness conjecture for $C^\omega$ transformations.

Dynamical Systems · Mathematics 2015-09-08 Scot Adams

There has been recent interest in a hybrid form of the celebrated conjectures of Hardy-Littlewood and of Chowla. We prove that for any $k,\ell\ge1$ and distinct integers $h_2,\ldots,h_k,a_1,\ldots,a_\ell$, we have $$\sum_{n\leq…

Number Theory · Mathematics 2022-10-27 Jared Duker Lichtman , Joni Teräväinen

We prove that if a set is `large' in the sense of Erd\H{o}s, then it approximates arbitrarily long arithmetic progressions in a strong quantitative sense. More specifically, expressing the error in the approximation in terms of the gap…

Metric Geometry · Mathematics 2019-05-14 Jonathan M. Fraser , Han Yu

Using a ${}_7F_6$ hypergeometric transformation formula, we prove two supercongruences. In particular, one of these supercongruences confirms a recent conjecture of Guo, Liu and Schlosser, and gives an extension of a supercongruence of Long…

Number Theory · Mathematics 2023-06-06 Chen Wang

Let $\mathcal{P}$ denote the set of all primes. In 1950, P. Erd\H{o}s conjectured that if $c$ is an arbitrarily given constant, $x$ is sufficiently large and $a_1,\dots , a_t$ are positive integers with $a_1<a_2<\cdot\cdot\cdot<a_t\leqslant…

Number Theory · Mathematics 2022-01-27 Yong-Gao Chen , Yuchen Ding

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

The well known Andrews-Curtis Conjecture [2] is still open. In this paper, we establish its finite version by describing precisely the connected components of the Andrews-Curtis graphs of finite groups. This finite version has independent…

Group Theory · Mathematics 2011-03-08 Alexandre V. Borovik , Alexander Lubotzky , Alexei G. Myasnikov

In a recent paper, Merca posed three conjectures on congruences for specific convolutions of a sum of odd divisor functions with a generating function for generalized $m$-gonal numbers. Extending Merca's work, we complete the proof of these…

Number Theory · Mathematics 2021-07-22 Kaya Lakein , Anne Larsen

We study some versions of the statement of Hadwiger's conjecture for finite as well as infinite graphs.

Combinatorics · Mathematics 2016-10-04 Dominic van der Zypen

We propose several Hodge theoretic analogues of the conjectures of Hopf and Singer, and prove them in some special cases.

Algebraic Geometry · Mathematics 2024-02-16 Donu Arapura , Laurentiu Maxim , Botong Wang