Search Results - Block structures with rectangular Toeplitz blocks*

Block structures, g.a.c.s. approximation, and distributions

Authors: Adriani, Andrea Schiavoni-Piazza, Alec Jacopo Almo Serra-Capizzano, Stefano

Source: Boletín de la Sociedad Matematica Mexicana. 31(2)

Subject Terms: Block structures with rectangular Toeplitz blocks, Asymptotic distributions in the Weyl sense, Generalized approximating class of sequences, Matrix approximation and preconditioning

File Description: electronic

Access URL: https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-552049
https://doi.org/10.1007/s40590-025-00719-7

Blocking structures, approximation, and preconditioning.

Authors: Barakitis, Nikos Donatelli, Marco Ferri, Samuele et al.

Source: Numerical Algorithms; Dec2025, Vol. 100 Issue 4, p1893-1927, 35p

Subject Terms: LINEAR systems, TOEPLITZ matrices, EIGENVALUES, SIMULATION methods & models, APPROXIMATION error

A Korovkin-Based Approximation of Multilevel Toeplitz Matrices (with Rectangular Unstructured Blocks) via Multilevel Trigonometric Matrix Spaces

Authors: Capizzano, Stefano Serra

Source: SIAM Journal on Numerical Analysis, 1999 Jan 01. 36(6), 1831-1857.

Access URL: https://www.jstor.org/stable/2587224

A Korovkin-Based Approximation of MultilevelToeplitz Matrices (With Rectangular Unstructured Blocks) via Multilevel Trigonometric Matrix Spaces: A Korovkin-based approximation of multilevel Toeplitz matrices (With rectangular unstructured blocks) via multilevel trigonometric matrix spaces

Authors: SERRA CAPIZZANO, STEFANO

Source: SIAM Journal on Numerical Analysis. 36:1831-1857

Subject Terms: Linear symmetric and selfadjoint operators (unbounded), Toeplitz matrices, 4. Education, Multilinear algebra, tensor calculus, Approximation by positive operators, linear positive operators, matrix spaces, 0101 mathematics, matrix algebras, 01 natural sciences

File Description: application/xml

Access URL: https://epubs.siam.org/doi/abs/10.1137/S0036142997322497
https://www.jstor.org/stable/2587224
https://hdl.handle.net/11383/1490585

Block Circulant and Toeplitz Structures in the Linearized Hartree–Fock Equation on Finite Lattices: Tensor Approach

Authors: Khoromskaia, V. Khoromskij, B.

Source: Computational Methods in Applied Mathematics

Subject Terms: FOS: Mathematics, 65F30, 65F50, 65N35, 65F10, Mathematics - Numerical Analysis, Numerical Analysis (math.NA), 0101 mathematics, 01 natural sciences

File Description: application/pdf

Access URL: http://arxiv.org/pdf/1702.00339
http://arxiv.org/abs/1702.00339
https://core.ac.uk/display/86636038
https://doi.org/10.1515/cmam-2017-0004
https://dblp.uni-trier.de/db/journals/cmam/cmam17.html#KhoromskaiaK17
https://pure.mpg.de/pubman/item/item_2464344_7/component/file_2591586/khoromskaia_2464344.pdf
https://www.mis.mpg.de/de/publications/preprints/2017/2017-12.html
https://pure.mpg.de/pubman/faces/ViewItemOverviewPage.jsp?itemId=item_2464344
http://hdl.handle.net/11858/00-001M-0000-002D-CAEC-9
http://hdl.handle.net/21.11116/0000-0001-5792-8

OLRIV: a new fast adaptive algorithm for rectangular-block Toeplitz systems: OLRIV: A new fast adaptive algorithm for rectangular-block Toeplitz systems

Authors: V. Buzenac-Settineri M. Najim

Source: IEEE Transactions on Signal Processing. 48:2519-2534

Subject Terms: Signal theory (characterization, reconstruction, filtering, etc.), overdetermined systems, 0209 industrial biotechnology, OLRIV, Toeplitz matrices, adaptive filtering, 0202 electrical engineering, electronic engineering, information engineering, overdetermined lattice recursive instrumental variable, 02 engineering and technology, blind adaptive identification of AR channels

File Description: application/xml

Linear eigenvalue statistics of XX′ matrices.

Authors: A. S., Kiran Kumar Maurya, Shambhu Nath Saha, Koushik

Source: Journal of Mathematical Physics; Dec2023, Vol. 64 Issue 12, p1-27, 27p

Subject Terms: TOEPLITZ matrices, STATISTICS, MATRICES (Mathematics), RANDOM variables, GAUSSIAN distribution

Reduced Order Modeling for First Order Hyperbolic Systems with Application to Multiparameter Acoustic Waveform Inversion.

Authors: Borcea, Liliana Garnier, Josselin Mamonov, Alexander V. et al.

Source: SIAM Journal on Imaging Sciences; 2025, Vol. 18 Issue 2, p851-880, 30p

On the fast solution of Toeplitz-block linear systems arising in multivariate approximation theory

Authors: Becuwe, Stefan Cuyt, Annie A.M.

Source: Numerical algorithms

Subject Terms: 0101 mathematics, 01 natural sciences

Access URL: https://hdl.handle.net/10067/620170151162165141

Faster Sparse Matrix Inversion and Rank Computation in Finite Fields

Authors: Casacuberta, Sílvia Kyng, Rasmus

Index Terms: Computer Science - Data Structures and Algorithms, Computer Science - Symbolic Computation, Mathematics - Numerical Analysis, text

URL: http://arxiv.org/abs/2106.09830

On the Operator Norm of Random Rectangular Toeplitz Matrices.

Authors: Adamczak, Radosław

Source: High Dimensional Probability VI; 2013, p247-260, 14p

Water-wave diffractions by three-dimensional periodic rectangular blocks: Fourier modal analysis.

Authors: Wang, Jiyong Chung, Fei Fang Ong, Muk Chen

Source: Physics of Fluids; Jul2024, Vol. 36 Issue 7, p1-11, 11p

Subject Terms: TOEPLITZ matrices, MODAL analysis, WATER waves, FOURIER analysis, WAVE energy

Solving Sparse Linear Systems Faster than Matrix Multiplication.

Authors: Peng, Richard Vempala, Santosh

Source: Journal of the ACM; Dec2025, Vol. 72 Issue 6, p1-72, 72p

Subject Terms: SPARSE matrices, COMPUTATIONAL complexity, NUMERICAL analysis, ALGORITHMS, EIGENVALUES, KRYLOV subspace, MATRIX multiplications

ANALYSIS ON AGGREGATION AND BLOCK SMOOTHERS IN MULTIGRID METHODS FOR BLOCK TOEPLITZ LINEAR SYSTEMS.

Authors: BOLTEN, MATTHIAS DONATELLI, MARCO FERRARI, PAOLA et al.

Source: SIAM Journal on Matrix Analysis & Applications; 2025, Vol. 46 Issue 2, p1416-1443, 28p

Subject Terms: TOEPLITZ matrices, JACOBI method, SMOOTHING (Numerical analysis), COMPUTER performance, ALGEBRAIC multigrid methods, FINITE element method

A Scalable and Consistent Method for Multi-Component Gravity-Gradient Data Processing.

Authors: Piauilino, Larissa Silva Oliveira Junior, Vanderlei Coelho Barbosa, Valeria Cristina Ferreira

Source: Applied Sciences (2076-3417); Aug2025, Vol. 15 Issue 15, p8396, 26p

Subject Terms: ELECTRONIC data processing, TOEPLITZ matrices, BIG data, GRAVIMETRY, CONVOLUTIONAL neural networks, MATRIX inversion

RECURSIVE ALGORITHMS TO UPDATE A NUMERICAL BASIS MATRIX OF THE NULL SPACE OF THE BLOCK ROW, (BANDED) BLOCK TOEPLITZ, AND BLOCK MACAULAY MATRIX.

Authors: VERMEERSCH, CHRISTOF DE MOOR, BART

Source: SIAM Journal on Scientific Computing; 2023, Vol. 45 Issue 2, pA596-A620, 25p

Subject Terms: TOEPLITZ matrices, SPARSE matrices, MATRICES (Mathematics), ALGORITHMS, EIGENVALUES

On the Limiting Distribution of the Spectra of Random Block Matrices.

Authors: Tikhomirov, Alexander N.

Source: Mathematics (2227-7390); Jul2025, Vol. 13 Issue 13, p2056, 23p

Subject Terms: RANDOM matrices, DISTRIBUTION (Probability theory), HYPOTHESIS, ASYMPTOTIC distribution, POWER spectra, MATRICES (Mathematics)

Frequency Subsampling of Ultrasound Nondestructive Measurements: Acquisition, Reconstruction, and Performance.

Authors: Kirchhof, Jan Semper, Sebastian Wagner, Christoph W. et al.

Source: IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control; Oct2021, Vol. 68 Issue 10, p3174-3191, 18p

Subject Terms: ULTRASONIC imaging, NONDESTRUCTIVE testing, SYNTHETIC apertures, IMAGE reconstruction, ULTRASONIC measurement

Fast algebraic multigrid for block-structured dense systems arising from nonlocal diffusion problems.

Authors: Chen, Minghua Cao, Rongjun Serra-Capizzano, Stefano

Source: Calcolo; Nov2024, Vol. 61 Issue 4, p1-27, 27p

Subject Terms: FAST Fourier transforms, LINEAR systems, OPEN-ended questions, ARITHMETIC

Multigrid methods for block‐Toeplitz linear systems: convergence analysis and applications.

Authors: Donatelli, Marco Ferrari, Paola Furci, Isabella et al.

Source: Numerical Linear Algebra with Applications; Aug2021, Vol. 28 Issue 4, p1-20, 20p

Subject Terms: MULTIGRID methods (Numerical analysis), LINEAR systems, INDEPENDENT system operators, TOEPLITZ matrices, GALERKIN methods, FINITE element method