Results 61 to 70 of about 1,693 (108)

Irrational numbers associated to sequences without geometric progressions [PDF]

open access: yes, 2013
Let s and k be integers with s \geq 2 and k \geq 2. Let g_k^{(s)}(n) denote the cardinality of the largest subset of the set {1,2,..., n} that contains no geometric progression of length k whose common ratio is a power of s.
Nathanson, Melvyn B., O'Bryant, Kevin
core  

Generalizations of some identities involving the fibonacci numbers [PDF]

open access: yesarXiv, 2003
In this paper we study the sum $$\sum_{j_1+j_2+...+j_d=n}\prod_{i=1}^d F_{k\cdot j_i},$$ where $d\geq2$ and $k\geq1$.
arxiv  

On some monotonic combinatorial sequences conjectures [PDF]

open access: yesarXiv, 2012
Here we prove some conjectures on the monotony of combinatorial sequences from the recent preprint of Zhi--Wei Sun.
arxiv  

On the number of outer connected dominating sets of graphs

open access: yes, 2012
Let $G=(V,E)$ be a simple graph. A set $S\subseteq V(G)$ is called an outer-connected dominating set (or ocd-set) of $G$, if $S$ is a dominating set of $G$ and either $S=V(G)$ or $V\backslash S$ is a connected graph.
Akhbari, Mohammad H.   +2 more
core  

Asymptotic approximations of Apostol-Frobenius-Euler polynomials of order α in terms of hyperbolic functions

open access: yesDemonstratio Mathematica
The study of special functions has become an enthralling area in mathematics because of its properties and wide range of applications that are relevant into other fields of knowledge.
Corcino Cristina B.   +2 more
doaj   +1 more source

Fully degenerate poly-Bernoulli numbers and polynomials

open access: yesOpen Mathematics, 2016
In this paper, we introduce the new fully degenerate poly-Bernoulli numbers and polynomials and inverstigate some properties of these polynomials and numbers.
Kim Taekyun, Kim Dae San, Seo Jong-Jin
doaj   +1 more source

Incomplete Generalized Fibonacci and Lucas Polynomials [PDF]

open access: yesarXiv, 2013
In this paper, we define the incomplete h(x)-Fibonacci and h(x)-Lucas polynomials, we study recurrence relations and some properties of these ...
arxiv  

Exponent Lifting Property of Integer Sequences [PDF]

open access: yesarXiv, 2015
The purpose of this paper is to investigate integer sequences with exponent lifting property, a property common in Fibonacci or Lucas sequences.
arxiv  

Generalised Binomial coefficients and Jarden's Theorem [PDF]

open access: yes, 2013
We prove a stronger version of Jarden's Theorem for recurrence of powers of recursive functionsComment: A section (section 3) concerning the application of Jarden's Theorem is ...
Cheng Lien, Lang, Mong Lung Lang
core  

Prime Number Sums [PDF]

open access: yesarXiv, 2018
We prove that it is always possible to find a permutation $p$ on the set $\{1,...,n\}$ such that $c+p(c)$ is prime for all $c \in \{1,...,n\}.$
arxiv  

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