Results 31 to 40 of about 448,655 (204)

Efficient quantum circuits for dense circulant and circulant like operators [PDF]

open access: yesRoyal Society Open Science, 2017
Circulant matrices are an important family of operators, which have a wide range of applications in science and engineering-related fields. They are, in general, non-sparse and non-unitary.
S. S. Zhou, J. B. Wang
doaj   +1 more source

Norms of randomized circulant matrices

open access: yesElectronic Journal of Probability, 2022
We investigate two-sided bounds for operator norms of random matrices with unhomogenous independent entries. We formulate a lower bound for Rademacher matrices and conjecture that it may be reversed up to a universal constant. We show that our conjecture holds up to $\log\log n$ factor for randomized $n\times n$ circulant matrices and double logarithm ...
Latała, Rafał, Świątkowski, Witold
openaire   +3 more sources

On Skew Circulant Type Matrices Involving Any Continuous Fibonacci Numbers

open access: yesAbstract and Applied Analysis, 2014
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.
Zhaolin Jiang, Jinjiang Yao, Fuliang Lu
doaj   +1 more source

On Circulant Matrices

open access: yesCommunications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1970
In this article rows, we introduce a more generalized notion of circulant matıix, namely, q-rows /«circulant matrices. Suppose the ıuatrix is n x n and q is a divisor of n so that the row8 of the matrix can be partitioned into hlocks ofq-rows each.Let each row hlock be obtainened from the precediug one by shifting ali its entıies l places to the right.
openaire   +3 more sources

On Circulant Matrices

open access: yesNotices of the American Mathematical Society, 2012
Some mathematical topics, circulant matrices, in particular, are pure gems that cry out to be admired and studied with different techniques or perspectives in mind. Our work on this subject was originally motivated by the apparent need of one of the authors (IK) to derive a specific result, in the spirit of Proposition 24, to be applied in his ...
Irwin Kra, Santiago R. Simanca
openaire   +1 more source

Exact Inverse Matrices of Fermat and Mersenne Circulant Matrix

open access: yesAbstract and Applied Analysis, 2015
The well known circulant matrices are applied to solve networked systems. In this paper, circulant and left circulant matrices with the Fermat and Mersenne numbers are considered. The nonsingularity of these special matrices is discussed.
Yanpeng Zheng, Sugoog Shon
doaj   +1 more source

Skew Circulant Type Matrices Involving the Sum of Fibonacci and Lucas Numbers

open access: yesAbstract and Applied Analysis, 2015
Skew circulant and circulant matrices have been an ideal research area and hot issue for solving various differential equations. In this paper, the skew circulant type matrices with the sum of Fibonacci and Lucas numbers are discussed.
Zhaolin Jiang, Yunlan Wei
doaj   +1 more source

Real block-circulant matrices and DCT-DST algorithm for transformer neural network

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
In the encoding and decoding process of transformer neural networks, a weight matrix-vector multiplication occurs in each multihead attention and feed forward sublayer.
Euis Asriani   +4 more
doaj   +1 more source

On circulant thin Lehman matrices [PDF]

open access: yesJournal of Algebraic Combinatorics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tadashi Sakuma, Hidehiro Shinohara
openaire   +2 more sources

Hadamard Matrices with Cocyclic Core

open access: yesMathematics, 2021
Since Horadam and de Launey introduced the cocyclic framework on combinatorial designs in the 1990s, it has revealed itself as a powerful technique for looking for (cocyclic) Hadamard matrices.
Víctor Álvarez   +5 more
doaj   +1 more source

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