Results 21 to 30 of about 255,828 (280)

On some new results for the generalised Lucas sequences

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper we introduce the functions which count the number of generalized Lucas and Pell-Lucas sequence terms not exceeding a given value x and, under certain conditions, we derive exact formulae (Theorems 3 and 4) and establish asymptotic limits ...
Andrica Dorin   +2 more
doaj   +1 more source

Balancing and Lucas-Balancing Numbers and their Application to Cryptography [PDF]

open access: yes, 2016
It is well known that, a recursive relation for the sequence  is an equation that relates  to certain of its preceding terms .
Kumar Ray, Prasanta   +2 more
core   +4 more sources

On r-Jacobsthal and r-Jacobsthal-Lucas Numbers

open access: yesAnnales Mathematicae Silesianae, 2023
Recently, Bród introduced a new Jacobsthal-type sequence which is called r-Jacobsthal sequence in current study. After defining the appropriate r-Jacobsthal–Lucas sequence for the r-Jacobsthal sequence, we obtain some properties of these two sequences ...
Bilgici Göksal, Bród Dorota
doaj   +1 more source

Identities relating six members of the Fibonacci family of sequences

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
In this paper, we prove several identities each relating a sum of products of three terms coming from different members of the Fibonacci family of sequences with a comparable sum whose terms come from three other sequences.
R. Frontczak, T. Goy, M. Shattuck
doaj   +1 more source

The first map of crop sequence types in Europe over 2012–2018 [PDF]

open access: yesEarth System Science Data, 2023
Crop diversification is considered a key element of agroecological transition, whereas current dominant cropping systems are known to rely on only a few crop species – like cereals in Europe.
R. Ballot, N. Guilpart, M.-H. Jeuffroy
doaj   +1 more source

A method to decrease computation time for fourth order Lucas sequence [PDF]

open access: yes, 2013
The fourth order Lucas sequence is a linear recurrence relation related to quartic polynomial and based on Lucas function. This sequence had been used to develop the LUC4,6 cryptosystem.
Koo, Lee Feng   +3 more
core   +1 more source

Complex Factorizations of the Lucas Sequences via Matrix Methods

open access: yesJournal of Applied Mathematics, 2014
Firstly, we show a connection between the first Lucas sequence and the determinants of some tridiagonal matrices. Secondly, we derive the complex factorizations of the first Lucas sequence by computing those determinants with the help of Chebyshev ...
Honglin Wu
doaj   +1 more source

A lucas based cryptosystem analog to the ElGamal cryptosystem and elliptic curve cryptosystem [PDF]

open access: yes, 2014
In this paper, a new cryptosystem will be developed which is analogue to ElGamal encryption scheme and based on Lucas sequence in the elliptic curve group over finite field. In this encryption scheme, an Elliptic curve Diffie-Hellman (ECDH) key agreement
Koo, Lee Feng   +3 more
core   +1 more source

Diophantine equations with Lucas and Fibonacci number coefficients [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
Fibonacci and Lucas numbers are special number sequences that have been the subject of many studies throughout history due to the relations they provide.
Cemil Karaçam   +3 more
doaj   +1 more source

On the common modulus attack into the LUC4,6 cryptosystem [PDF]

open access: yes, 2014
The LUC4,6 cryptosystem is a system analogy with RSA cryptosystem and extended from LUC and LUC3 cryptosystems. The process of encryption and decryption are derived from the fourth order linear recurrence sequence and based on Lucas function.
Koo, Lee Feng   +3 more
core   +1 more source

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