On the circulant matrices with Ducci sequence and Gaussian Fibonacci numbers

2021 ◽  
Author(s):  
Roji Bala ◽  
Vinod Mishra
2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Jiangming Ma ◽  
Tao Qiu ◽  
Chengyuan He

We use a new method of matrix decomposition for r -circulant matrix to get the determinants of A n = Circ r F 1 , F 2 , … , F n and B n = Circ r L 1 , L 2 , … , L n , where F n is the Fibonacci numbers and L n is the Lucas numbers. Based on these determinants and the nonsingular conditions, inverse matrices are derived. The expressions of the determinants and inverse matrices are represented by Fibonacci and Lucas Numbers. In this study, the formulas of determinants and inverse matrices are much simpler and concise for programming and reduce the computational time.


Filomat ◽  
2018 ◽  
Vol 32 (15) ◽  
pp. 5501-5508
Author(s):  
Süleyman Solak ◽  
Mustafa Bahşi ◽  
Osman Kan

A Ducci sequence generated by A = (a1,a2,...,an)? Zn is the sequence {A,DA,D2A,...} where the Ducci map D : Zn ? Zn is defined by D(A) = D(a1, a2,...,an) = (|a2-a1|, |a3-a2|,..., |an-an-1|, |an-a1|). In this study, we examine some properties of the matrices Cn, DCn, D2Cn; where Cn =Circ(c0,c1,..., cn-1) is a circulant matrix whose entries consist of Fibonacci numbers.


2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Ercan Altınışık ◽  
N. Feyza Yalçın ◽  
Şerife Büyükköse

AbstractLet ℱ


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Jianwei Zhou

Improved estimates for spectral norms of circulant matrices are investigated, and the entries are binomial coefficients combined with either Fibonacci numbers or Lucas numbers. Employing the properties of given circulant matrices, this paper improves the inequalities for their spectral norms, and gets corresponding identities of spectral norms. Moreover, by some well-known identities, the explicit identities for spectral norms are obtained. Some numerical tests are listed to verify the results.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Zhaolin Jiang ◽  
Jinjiang Yao ◽  
Fuliang Lu

Circulant and skew circulant matrices have become an important tool in networks engineering. In this paper, we consider skew circulant type matrices with any continuous Fibonacci numbers. We discuss the invertibility of the skew circulant type matrices and present explicit determinants and inverse matrices of them by constructing the transformation matrices. Furthermore, the maximum column sum matrix norm, the spectral norm, the Euclidean (or Frobenius) norm, and the maximum row sum matrix norm and bounds for the spread of these matrices are given, respectively.


2020 ◽  
Vol 70 (3) ◽  
pp. 641-656
Author(s):  
Amira Khelifa ◽  
Yacine Halim ◽  
Abderrahmane Bouchair ◽  
Massaoud Berkal

AbstractIn this paper we give some theoretical explanations related to the representation for the general solution of the system of the higher-order rational difference equations$$\begin{array}{} \displaystyle x_{n+1} = \dfrac{1+2y_{n-k}}{3+y_{n-k}},\qquad y_{n+1} = \dfrac{1+2z_{n-k}}{3+z_{n-k}},\qquad z_{n+1} = \dfrac{1+2x_{n-k}}{3+x_{n-k}}, \end{array}$$where n, k∈ ℕ0, the initial values x−k, x−k+1, …, x0, y−k, y−k+1, …, y0, z−k, z−k+1, …, z1 and z0 are arbitrary real numbers do not equal −3. This system can be solved in a closed-form and we will see that the solutions are expressed using the famous Fibonacci and Lucas numbers.


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