Results 1 to 10 of about 2,101,232 (306)

AN ANTENNA BASED ON A HYBRID METAL–DIELECTRIC STRUCTURE [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: Nowadays, in the millimeter frequency range, the dielectric waveguides of various modifications have certain advantages over the standard metal waveguides, primarily due to the possibility of creating functional units based on them.
D. V. Mayboroda, S. O. Pogarsky
doaj   +1 more source

Matrix Representation of Bi-Periodic Pell Sequence [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
In this study, a generalization of the Pell sequence called bi-periodic Pell sequence is carried out to matrix theory. Therefore, we call this matrix sequence the bi-periodic Pell matrix sequence whose entries are bi-periodic Pell numbers.
Sukran UYGUN, Ersen Akıncı
doaj   +1 more source

Periodic autocorrelation of sequences

open access: yesCryptography and Communications, 2023
The autocorrelation of a sequence is a useful criterion, among all, of resistance to cryptographic attacks. The behavior of the autocorrelations of random Boolean functions (studied by Florian Caullery, Eric Férard and François Rodier [4]) shows that they are concentrated around a point.
Florian Caullery   +2 more
openaire   +4 more sources

On the bi-periodic Padovan sequences [PDF]

open access: yesMathematica Moravica, 2023
In this study, we define a new generalization of the Padovan numbers, which shall also be called the bi-periodic Padovan sequence. Also, we consider a generalized bi-periodic Padovan matrix sequence. Finally, we investigate the Binet formulas, generating
Dışkaya Orhan, Menken Hamza
doaj   +1 more source

The Method of Estimating the Period of a Symbolic Periodic Sequence with Noise, Based on the Sub-Words Positions in the Sequence

open access: yesСовременные информационные технологии и IT-образование, 2020
The method of estimating the period of an almost periodic sequence is proposed. The period of an almost periodic sequence is the length of the smallest periodic pattern that composes the corresponding completely periodic sequence by repetition.
Galina Zhukova   +3 more
doaj   +1 more source

On the reciprocal products of generalized Fibonacci sequences

open access: yesJournal of Inequalities and Applications, 2022
In this paper, we use the properties of error estimation and the analytic method to study the reciprocal products of the bi-periodic Fibonacci sequence, the bi-periodic Lucas sequence, and the mth-order linear recursive sequence.
Tingting Du, Zhengang Wu
doaj   +1 more source

Practical calculation of asymmetric short circuit current of DFIG connected to distribution network [PDF]

open access: yesE3S Web of Conferences, 2020
In view of the existing complex analytic calculations of DFIG short-circuit current are hardly applied in engineering projects, a practical calculation of asymmetric short-circuit current of DFIG is proposed.
Fu Pengwu   +4 more
doaj   +1 more source

The relations between bi-periodic jacobsthal and bi-periodic jacobsthal lucas sequence

open access: yesCumhuriyet Science Journal, 2021
In this paper, one of the special integer sequences, Jacobsthal and Jacobsthal Lucas sequences which are encountered in computer science is generalized according to parity of the index of the entries of the sequences, called bi-periodic Jacobsthal and ...
Şükran Uygun
doaj   +1 more source

A note on periodic linear recurrence relations [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
We provide an elementary proof of the fact that a sequence defined by a linear recurrence relation with integer coefficients is periodic if and only if all characteristic roots are distinct roots of unity.
József Bukor
doaj   +1 more source

Magic Numbers in Periodic Sequences

open access: yes, 2023
In formal languages and automata theory, the magic number problem can be formulated as follows: for a given integer n, is it possible to find a number d in the range [n,2^n] such that there is no minimal deterministic finite automaton with d states that can be simulated by an optimal nondeterministic finite automaton with exactly n states?
Kreczman, Savinien   +3 more
openaire   +5 more sources

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