Results 1 to 10 of about 341,424 (240)

On the Spectral and Frobenius Norm of a Generalized Fibonacci r-Circulant Matrix [PDF]

open access: yesSpecial Matrices, 2018
Consider the recursion g0 = a, g1 = b, gn = gn−1 + gn−2, n = 2, 3, . . . . We compute the Frobenius norm of the r-circulant matrix corresponding to g0, . . . , gn−1. We also give three lower bounds (with equality conditions) for the spectral norm of this
Jorma Kaarlo Merikoski   +2 more
exaly   +10 more sources

A generalization and an application of the arithmetic–geometric mean inequality for the Frobenius norm [PDF]

open access: yesJournal of Inequalities and Applications, 2018
Recently, Kittaneh and Manasrah (J. Math. Anal. Appl. 361:262–269, 2010) showed a refinement of the arithmetic–geometric mean inequality for the Frobenius norm. In this paper, we shall present a generalization of Kittaneh and Manasrah’s result. Meanwhile,
Xuesha Wu
doaj   +6 more sources

A Sensor Localization and Orientation Method for OPM-MEG Based on Rigid Coil Structures and Magnetic Dipole Fitting Models [PDF]

open access: yesBioengineering
High-precision sensor co-registration is a critical prerequisite for achieving high-resolution imaging in Optically Pumped Magnetometer–Magnetoencephalography (OPM-MEG) systems.
Weinan Xu   +8 more
doaj   +2 more sources

Truncated singular value decomposition in ripped photo recovery [PDF]

open access: yesITM Web of Conferences, 2021
Singular value decomposition (SVD) is one of the most useful matrix decompositions in linear algebra. Here, a novel application of SVD in recovering ripped photos was exploited. Recovery was done by applying truncated SVD iteratively.
Lem Kong Hoong
doaj   +1 more source

The block LSMR algorithm for solving linear systems with multiple right-hand sides [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2015
LSMR (Least Squares Minimal Residual) is an iterative method for the solution of the linear system of equations and leastsquares problems. This paper presents a block version of the LSMR algorithm for solving linear systems with multiple right-hand sides.
maryam mojarrab, Faezeh Toutounian
doaj   +1 more source

On The Frobenius Condition Number of Positive Definite Matrices

open access: yesJournal of Inequalities and Applications, 2010
We present some lower bounds for the Frobenius condition number of a positive definite matrix depending on trace, determinant, and Frobenius norm of a positive definite matrix and compare these results with other results. Also, we give a relation for the
Ramazan Türkmen   +1 more
doaj   +2 more sources

Distributed Frobenius-Norm Finite Memory Interacting Multiple Model Estimation for Mobile Robot Localization

open access: yesIEEE Access, 2022
This paper proposes a novel state estimation algorithm, called the distributed Frobenius-norm finite memory interacting multiple model (DFFM-IMM) estimation algorithm, for mobile robot localization in wireless sensor networks (WSNs).
Duckhyun Suh   +3 more
doaj   +1 more source

LSMR Iterative Method for General Coupled Matrix Equations

open access: yesJournal of Applied Mathematics, 2015
By extending the idea of LSMR method, we present an iterative method to solve the general coupled matrix equations ∑k=1qAikXkBik=Ci, i=1,2,…,p, (including the generalized (coupled) Lyapunov and Sylvester matrix equations as special cases) over some ...
F. Toutounian   +2 more
doaj   +1 more source

An Iterative Algorithm for the Least Squares Generalized Reflexive Solutions of the Matrix Equations 𝐴𝑋𝐵=𝐸,𝐶𝑋𝐷=𝐹

open access: yesAbstract and Applied Analysis, 2012
The generalized coupled Sylvester systems play a fundamental role in wide applications in several areas, such as stability theory, control theory, perturbation analysis, and some other fields of pure and applied mathematics.
Feng Yin, Guang-Xin Huang
doaj   +1 more source

The χ-Hessian Quotient for Riemannian Metrics

open access: yesAxioms, 2021
Pseudo-Riemannian geometry and Hilbert–Schmidt norms are two important fields of research in applied mathematics. One of the main goals of this paper will be to find a link between these two research fields. In this respect, in the present paper, we will
Pişcoran Laurian-Ioan   +3 more
doaj   +1 more source

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