Results 31 to 40 of about 1,693 (108)

Formal inverses of the generalized Thue-Morse sequences and variations of the Rudin-Shapiro sequence [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
A formal inverse of a given automatic sequence (the sequence of coefficients of the composition inverse of its associated formal power series) is also automatic.
Łukasz Merta
doaj   +1 more source

On sequences without geometric progressions

open access: yes, 2013
An improved upper bound is obtained for the density of sequences of positive integers that contain no k-term geometric progression.Comment: 4 pages; minor ...
Nathanson, Melvyn B., O'Bryant, Kevin
core   +1 more source

Fully degenerate Bell polynomials associated with degenerate Poisson random variables

open access: yesOpen Mathematics, 2021
Many mathematicians have studied degenerate versions of quite a few special polynomials and numbers since Carlitz’s work (Utilitas Math. 15 (1979), 51–88). Recently, Kim et al.
Kim Hye Kyung
doaj   +1 more source

Barker sequences of odd length [PDF]

open access: yes, 2015
A Barker sequence is a binary sequence for which all nontrivial aperiodic autocorrelations are at most 1 in magnitude. An old conjecture due to Turyn asserts that there is no Barker sequence of length greater than 13.
Schmidt, Kai-Uwe, Willms, Jürgen
core   +1 more source

Differential equations associated with generalized Bell polynomials and their zeros

open access: yesOpen Mathematics, 2016
In this paper, we study differential equations arising from the generating functions of the generalized Bell polynomials.We give explicit identities for the generalized Bell polynomials.
Ryoo Seoung Cheon
doaj   +1 more source

On split quaternion equivalents for Quaternaccis, shortly Split Quaternaccis

open access: yesOpen Mathematics, 2021
In this paper, we introduce generalizations of Quaternacci sequences (Quaternaccis), called Split Quaternacci sequences, which arose on a base of split quaternion algebras.
Bajorska-Harapińska Beata   +3 more
doaj   +1 more source

Some identities on generalized harmonic numbers and generalized harmonic functions

open access: yesDemonstratio Mathematica, 2023
The harmonic numbers and generalized harmonic numbers appear frequently in many diverse areas such as combinatorial problems, many expressions involving special functions in analytic number theory, and analysis of algorithms.
Kim Dae San, Kim Hyekyung, Kim Taekyun
doaj   +1 more source

Evolution patterns in Collatz problem [PDF]

open access: yesarXiv, 2022
The concept of evolution patterns is introduced for Collatz sequences and it is shown that any finite evolution pattern is implemented in some particular Collatz sequence.
arxiv  

Evaluation of integrals with hypergeometric and logarithmic functions

open access: yesOpen Mathematics, 2018
We provide an explicit analytical representation for a number of logarithmic integrals in terms of the Lerch transcendent function and other special functions.
Sofo Anthony
doaj   +1 more source

Notes on a General Sequence

open access: yesAnnales Mathematicae Silesianae, 2020
Let {rn}n∈𝕅 be a strictly increasing sequence of nonnegative real numbers satisfying the asymptotic formula rn ~ αβn, where α, β are real numbers with α > 0 and β > 1. In this note we prove some limits that connect this sequence to the number e.
Farhadian Reza, Jakimczuk Rafael
doaj   +1 more source

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