Results 11 to 20 of about 2,313 (171)
Decomposing a matrix into circulant and diagonal factors
Linear Algebra and Its Applications, 2000 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Thomas Beth
exaly +3 more sources
The Pseudoinverse of an r-Circulant Matrix [PDF]
Proceedings of the American Mathematical Society, 1972 It is shown that the Moore-Penrose pseudoinverse C + {C^ + }
Stallings, W. T., Boullion, T. L.
openaire +3 more sources
Matrix‐free constructions of circulant and block circulant preconditioners [PDF]
Numerical Linear Algebra with Applications, 2004 AbstractA framework for constructing circulant and block circulant preconditioners (C) for a symmetric linear system Ax=b arising from signal and image processing applications is presented in this paper. The proposed scheme does not make explicit use of matrix elements of A.
Yang, Chao +2 more
core +6 more sources
Cartesian MaxGIRF: Model-based EPI reconstruction incorporating gradient nonlinearity and concomitant field effects. [PDF]
Magn Reson MedAbstract Purpose Lower field strength scanners with large bore size or complex geometries, and scanners with stronger gradient systems experience increased gradient nonlinearity and concomitant fields, each of which causes distortions in EPI. Current correction approaches based on image‐domain interpolation introduce undesirable spatial blurring.
Lee NG, Cui SX, Nayak KS.
europepmc +2 more sources
FIELD FORMATION OF CIRCULANT MATRIX
BAREKENG: Jurnal Ilmu Matematika dan Terapan, 2020 The axioms of fields satisfy over sets of numbers such as , , and . Generally, a set matrix is not commutative for binary multiplication properties, such that cannot satisfy of field axioms. In this paper we will discuss the circulant matrix set which satisfies the commutative properties of multiplication, then it will be shown that the definition
Fahlevi, M. R. (Mahfudz) +2 more
openaire +4 more sources
Explicit spectrum of a circulant-tridiagonal matrix with applications
AIP Conference Proceedings, 2019 We consider a circulant-tridiagonal matrix and compute its determinant by using generating function method. Then we explicitly determine its spectrum. Finally we present applications of our results for trigonometric factorizations of the generalized Fibonacci and Lucas sequences.
Kilic E., Yalciner A.
core +5 more sources
On the spectral norm of a doubly stochastic matrix and level-k circulant matrix
Special MatricesAbstract A simple proof using Birkhoff theorem is given for the result that the spectral norm of a doubly stochastic matrix is 1. We also show that the result generalizes the results of İpek, Bozkurt, and Jiang and Zhou on circulant matrices and
Jiang, Zhao-Lin, Tam, Tin-Yau
openaire +3 more sources
Convergence of the powers of a circulant stochastic matrix
Linear Algebra and its Applications, 1990 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Krafft, Olaf, Schaefer, Martin
openaire +2 more sources
International Journal of Robust and Nonlinear Control, EarlyView., 2023 Abstract We propose a hierarchical energy management scheme for aggregating Distributed Energy Resources (DERs) for grid flexibility services. To prevent a direct participation of numerous prosumers in the wholesale electricity market, aggregators, as self‐interest agents in our scheme, incentivize prosumers to provide flexibility. We firstly model the
Xiupeng Chen +3 more
wiley +1 more source
Numerically stable coded matrix computations via circulant and rotation matrix embeddings [PDF]
2021 IEEE International Symposium on Information Theory (ISIT), 2021 39 pages, 3 ...
Aditya Ramamoorthy, Li Tang 0004
openaire +3 more sources