Results 21 to 30 of about 366 (35)

Improvements on dimension growth results and effective Hilbert’s irreducibility theorem

open access: yesForum of Mathematics, Sigma
We sharpen and generalize the dimension growth bounds for the number of points of bounded height lying on an irreducible algebraic variety of degree d, over any global field.
Raf Cluckers   +4 more
doaj   +1 more source

The density of twins of $k$-free numbers

open access: yes, 2014
For $k \geq 2$, we consider the number $A_k(Z)$ of positive integers $n \leq Z$ such that both $n$ and $n+1$ are $k$-free. We prove an asymptotic formula $A_k(Z) = c_k Z + O(Z^{14/(9k)+\epsilon})$, where the error term improves upon previously known ...
Dietmann, Rainer, Marmon, Oscar
core   +1 more source

On the Diophantine equation $\sum_{j=1}^kjF_j^p=F_n^q$

open access: yes, 2017
Let $F_n$ denote the $n^{th}$ term of the Fibonacci sequence. In this paper, we investigate the Diophantine equation $F_1^p+2F_2^p+\cdots+kF_{k}^p=F_{n}^q$ in the positive integers $k$ and $n$, where $p$ and $q$ are given positive integers.
Németh, László   +2 more
core   +1 more source

New examples of modular rigid Calabi-Yau threefolds

open access: yes, 2004
This paper presents five new examples of modular rigid Calabi-Yau threefolds arising from the modular elliptic surface of level 6. Explicit correspondences to newforms of weight 4 and level 10, 17, 21, and 73 are given.Comment: 9 pages; journal-ref ...
Schuett, Matthias
core   +1 more source

On a Generalization of the Frobenius Number

open access: yes, 2010
We consider a generalization of the Frobenius Problem where the object of interest is the greatest integer which has exactly $j$ representations by a collection of positive relatively prime integers.
Brown, Alexander   +9 more
core   +1 more source

Some equations with features of digit reversal and powers

open access: yes, 2016
In this paper we consider integers in base 10 like $abc$, where $a$, $b$, $c$ are digits of the integer, such that $abc^2 - (abc \cdot cba) \; = \; \pm n^2$, where $n$ is a positive integer, as well as equations $abc^2 - (abc \cdot cba) \; = \; \pm n^3$,
Campbell, Geoffrey B., Zujev, Aleksander
core  

Integers representable as differences of linear recurrence sequences. [PDF]

open access: yesRes Number Theory, 2021
Tichy R, Vukusic I, Yang D, Ziegler V.
europepmc   +1 more source

On prime powers in linear recurrence sequences. [PDF]

open access: yesAnn Math Quebec, 2023
Odjoumani J, Ziegler V.
europepmc   +1 more source

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