Results 71 to 80 of about 2,313 (171)
RESOLUTION PROJECTION BASED ON CIRCULANT MATRIX WITH COMPRESSIVE SENSING
, 2020 : The problem of resolution projection based on the approach of compression sensing is developed. For a fast and accurate processing of resolution projection compression sensing based coding is followed.
M Nagaraju Naik, Dr P Rajesh Kumar
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Circulant Type Matrices with the Sum and Product of Fibonacci and Lucas Numbers [PDF]
, 2014 Circulant type matrices have become an important tool in solving differential equations. In this paper, we consider circulant type matrices, including the circulant and left circulant and g-circulant matrices with the sum and product of Fibonacci and ...
Zhaolin Jiang, Yanpeng Gong, Yun Gao
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A Note on the Square Roots of a Class of Circulant Matrices [PDF]
, 2013 We prove that any k-circulant matrix and any even order skew k-circulant matrix are diagonalizable for any k∈ℂ. Then, we propose two algorithms for computing the square roots of the k-circulant matrix and the skew k-circulant matrix, respectively.
Guoyan Chen, Ying Zhang, Huisheng Zhang
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Circulant matrices: norm, powers, and positivity
, 2018 In their recent paper "The spectral norm of a Horadam circulant matrix", Merikoski, Haukkanen, Mattila and Tossavainen study under which conditions the spectral norm of a general real circulant matrix \({\bf C}\) equals the modulus of its row/column sum.
Lindner, Marko +2 more
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CIRCULANT MATRIX SOLUTION TO A CLASS OF QUATERNION MATRIX EQUATION AND ITS OPTIMAL APPROXIMATION
, 2013 本文研究了四元数体上矩阵方程XB=C的循环解及其最佳逼近问题.利用循环矩阵的结构表示式,以及四元数矩阵的复分解,得到了方程XB=C的循环解存在条件及其通解形式;在循环矩阵约束条件下,给出了该方程的最小二乘解集合;与此同时,在最小二乘解集合中,获得与给定四元数循环矩阵的最佳逼近解.推广了约束矩阵方程的数值求解范围.数值算例验证了本文算法的可行性.
许克佶, 黄敬频, 谭云龙
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A remark on symmetric circulant matrices
, 1988 By using the elementary properties of symmetric circulant matrices, we present another method for obtaining the solution for the linear system of equations Ax = b where A is an n×n nonsingular symmetric real circulant matrix, i.e., we have a formula for ...
Chong-Yun Chao, Chao, Chong-Yun
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Generalized circulant Strang-type preconditioners
, 2011 Strang's proposal to use a circulant preconditioner for linear systems of equations with a Hermitian positive definite Toeplitz matrix has given rise to considerable research on circulant preconditioners.
NOSCHESE, Silvia +2 more
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The inverse matrix of some circulant matrices
, 2015 We present here necessary and sufficient conditions for the invertibility of circulant and symmetric matrices that depend on three parameters and moreover, we explicitly compute the inverse. The techniques we use are related with the solution of boundary value problems associated to second order linear difffference equations.
Carmona, A. +4 more
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Skew circulant quadratic forms
, 1972 This paper investigates positive definite unimodular quadratic forms in n variables with rational integer coefficients and a skew circulant as the coefficient matrix. It is shown for n ≤ 13 that every such form is in the principal class, but that this no
Thompson, Robert C., Garbanati, Dennis
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On the norms of circulant and r-circulant matrices with the hyperharmonic Fibonacci numbers
, 2015 In this paper, we study norms of circulant and r-circulant matrices involving harmonic Fibonacci and hyperharmonic Fibonacci numbers.
Tuglu, Naim and Kizilates, Can
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