Results 11 to 20 of about 1,693 (108)

CYCLOTOMIC POLYNOMIALS WITH PRESCRIBED HEIGHT AND PRIME NUMBER THEORY

open access: yesMathematika, Volume 67, Issue 1, Page 214-234, January 2021., 2021
Abstract Given any positive integer n, let A(n) denote the height of the nth cyclotomic polynomial, that is its maximum coefficient in absolute value. It is well known that A(n) is unbounded. We conjecture that every natural number can arise as value of A(n) and prove this assuming that for every pair of consecutive primes p and p′ with p⩾127, we have ...
Alexandre Kosyak   +3 more
wiley   +1 more source

On the type 2 poly-Bernoulli polynomials associated with umbral calculus

open access: yesOpen Mathematics, 2021
Type 2 poly-Bernoulli polynomials were introduced recently with the help of modified polyexponential functions. In this paper, we investigate several properties and identities associated with those polynomials arising from umbral calculus techniques.
Kim Taekyun   +3 more
doaj   +1 more source

Study on r-truncated degenerate Stirling numbers of the second kind

open access: yesOpen Mathematics, 2022
The degenerate Stirling numbers of the second kind and of the first kind, which are, respectively, degenerate versions of the Stirling numbers of the second kind and of the first kind, appear frequently when we study various degenerate versions of some ...
Kim Taekyun, Kim Dae San, Kim Hyekyung
doaj   +1 more source

Some identities of degenerate harmonic and degenerate hyperharmonic numbers arising from umbral calculus

open access: yesOpen Mathematics, 2023
Hyperharmonic numbers were introduced by Conway and Guy (The Book of Numbers, Copernicus, New York, 1996), whereas harmonic numbers have been studied since antiquity.
Kim Taekyun, Kim Dae San, Kim Hye Kyung
doaj   +1 more source

The GCD Sequences of the Altered Lucas Sequences

open access: yesAnnales Mathematicae Silesianae, 2020
In this study, we give two sequences {L+n}n≥1 and {L−n}n≥1 derived by altering the Lucas numbers with {±1, ±3}, terms of which are called as altered Lucas numbers.
Koken Fikri
doaj   +1 more source

Several explicit formulas for (degenerate) Narumi and Cauchy polynomials and numbers

open access: yesOpen Mathematics, 2021
In this paper, with the aid of the Faà di Bruno formula and by virtue of properties of the Bell polynomials of the second kind, the authors define a kind of notion of degenerate Narumi numbers and polynomials, establish explicit formulas for degenerate ...
Qi Feng   +2 more
doaj   +1 more source

On the denominators of harmonic numbers [PDF]

open access: yes, 2017
Let $H_n$ be the $n$-th harmonic number and let $v_n$ be its denominator. It is well known that $v_n$ is even for every integer $n\ge 2$. In this paper, we study the properties of $v_n$.
Chen, Yong-Gao, Wu, Bing-Ling
core   +3 more sources

Sparse binary cyclotomic polynomials [PDF]

open access: yes, 2011
We derive a lower and an upper bound for the number of binary cyclotomic polynomials $\Phi_m$ with at most $m^{1/2+\epsilon}$ nonzero terms.Comment: 3 ...
Bzdega, Bartlomiej
core   +2 more sources

A Further Generalization of limn→∞n!/nn=1/e{\lim _{n \to \infty }}\root n \of {n!/n} = 1/e

open access: yesAnnales Mathematicae Silesianae, 2022
It is well-known, as follows from the Stirling’s approximation n!∼2πn(n/e)nn! \sim \sqrt {2\pi n{{\left( {n/e} \right)}^n}}, that n!/n→1/en\root n \of {n!/n \to 1/e}.
Farhadian Reza, Jakimczuk Rafael
doaj   +1 more source

Taylor’s series expansions for real powers of two functions containing squares of inverse cosine function, closed-form formula for specific partial Bell polynomials, and series representations for real powers of Pi

open access: yesDemonstratio Mathematica, 2022
In this article, by virtue of expansions of two finite products of finitely many square sums, with the aid of series expansions of composite functions of (hyperbolic) sine and cosine functions with inverse sine and cosine functions, and in the light of ...
Qi Feng
doaj   +1 more source

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