Results 1 to 10 of about 141,879 (256)

On Polynomial Recursive Sequences. [PDF]

open access: yesTheory Comput Syst, 2021
AbstractWe study the expressive power of polynomial recursive sequences, a nonlinear extension of the well-known class of linear recursive sequences. These sequences arise naturally in the study of nonlinear extensions of weighted automata, where (non)expressiveness results translate to class separations.
Cadilhac M   +4 more
europepmc   +10 more sources

Asymptotic Analysis of <i>q</i>-Recursive Sequences. [PDF]

open access: yesAlgorithmica, 2022
AbstractFor an integer$$q\ge 2$$q≥2, aq-recursive sequence is defined by recurrence relations on subsequences of indices modulo some powers of q. In this article,q-recursive sequences are studied and the asymptotic behavior of their summatory functions is analyzed.
Heuberger C, Krenn D, Lipnik GF.
europepmc   +4 more sources

Recursive interpolating sequences

open access: yesOpen Mathematics, 2018
This paper is devoted to pose several interpolation problems on the open unit disk 𝔻 of the complex plane in a recursive and linear way. We look for interpolating sequences (zn) in 𝔻 so that given a bounded sequence (an) and a suitable sequence (wn ...
Tugores Francesc
doaj   +2 more sources

On a (2,2)-rational recursive sequence

open access: yesAdvances in Difference Equations, 2005
We investigate the asymptotic behavior of the recursive difference equation yn+1=(α+βyn)/(1+yn−1) when the parameters α
Azza K. Khalifa   +2 more
doaj   +4 more sources

Theoretical and numerical analysis of solutions of some systems of nonlinear difference equations

open access: yesAIMS Mathematics, 2022
In this paper, we obtain the form of the solutions of the following rational systems of difference equations $ \begin{equation*} x_{n+1} = \dfrac{y_{n-1}z_{n}}{z_{n}\pm x_{n-2}}, \;y_{n+1} = \dfrac{z_{n-1}x_{n} }{x_{n}\pm y_{n-2}}, \ z_{n+1} = \dfrac ...
E. M. Elsayed, Q. Din, N. A. Bukhary
doaj   +1 more source

Log-concavity of P-recursive sequences [PDF]

open access: yesJournal of Symbolic Computation, 2021
We consider the higher order Turán inequality and higher order log-concavity for sequences $\{a_n\}_{n \ge 0}$ such that \[ \frac{a_{n-1}a_{n+1}}{a_n^2} = 1 + \sum_{i=1}^m \frac{r_i(\log n)}{n^{α_i}} + o\left( \frac{1}{n^β} \right), \] where $m$ is a nonnegative integer, $α_i$ are real numbers, $r_i(x)$ are rational functions of $x$ and \[ 0 < α_1 ...
Hou, Qing-hu, Li, Guojie
openaire   +2 more sources

Exponential bounds and tails for additive random recursive sequences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
Exponential bounds and tail estimates are derived for additive random recursive sequences, which typically arise as functionals of recursive structures, of random trees or in recursive algorithms.
Ludger Rüschendorf, Eva-Maria Schopp
doaj   +2 more sources

A Note on Two Fundamental Recursive Sequences

open access: yesAnnales Mathematicae Silesianae, 2021
In this note, we establish some general results for two fundamental recursive sequences that are the basis of many well-known recursive sequences, as the Fibonacci sequence, Lucas sequence, Pell sequence, Pell-Lucas sequence, etc.
Farhadian Reza, Jakimczuk Rafael
doaj   +1 more source

Some Results on a Rational Recursive Sequences

open access: yesPan-American Journal of Mathematics, 2023
In this paper, we study some results on the following rational recursive sequences: xn+1 = xn−9 / ±1 ± xn−1xn−3xn−5xn−7xn−9, n = 0, 1, · · · , where the initial conditions are arbitrary real numbers.
Abdualrazaq Sanbo, Elsayed M. Elsayed
doaj   +1 more source

On the Recursive Sequence x(n+!) = x(n-14) / [1 + x(n-2) x(n-5) x(n-8) x(n-11)]

open access: yesMANAS: Journal of Engineering, 2020
In this paper, given solutions fort he following difference equationx(n+!) = x(n-14) / [1 + x(n-2) x(n-5) x(n-8) x(n-11)]where the initial conditions are positive real numbers.
Dağistan Şimşek, Burak Oğul
doaj   +1 more source

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