Results 141 to 150 of about 3,155 (225)

Multipreconditioned GMRES for simulating stochastic automata networks

open access: yesOpen Mathematics, 2018
Stochastic Automata Networks (SANs) have a large amount of applications in modelling queueing systems and communication systems. To find the steady state probability distribution of the SANs, it often needs to solve linear systems which involve their ...
Wen Chun   +5 more
doaj   +1 more source

Absolute Continuity for Unbounded Jacobi Matrices with Constant Row Sums [PDF]

open access: yes, 2002
We investigate the spectral properties of a class of Jacobi matrices in which the subdiagonal entries are quadratics and the row sums are ...
Dombrowski, Joanne, Pedersen, Steen
core   +1 more source

Combined Matrix of a Tridiagonal Toeplitz Matrix

open access: yesAxioms
In this work, combined matrices of tridiagonal Toeplitz matrices are studied. The combined matrix is known as the Relative Gain Array in control theory.
Begoña Cantó   +2 more
doaj   +1 more source

Parallel Inversion of 3D Airborne Transient Electromagnetic Data Using an Approximate Jacobi Matrix

open access: yesRemote Sensing
In geophysical inversion issues, the Jacobian matrix computation takes the greatest time, and it is the most significant factor limiting the inversion’s calculation speed.
Da Lei   +4 more
doaj   +1 more source

A New Inverse Eigenvalue Problem for Jacobi Matrices and Corresponding Mass-Spring System

open access: yesپژوهش‌های ریاضی, 2020
Introduction Many problems in sciences and engineering can be studied by mathematical models. These models are classified as direct problems and inverse problems.
Hanif Mirzaei
doaj  

Spectral representations for a class of banded Jacobi-type matrices [PDF]

open access: yes
Tyt. z nagłówka.Bibliogr. s. 885-887.We describe some spectral representations for a class of non-self-adjoint banded Jacobi-type matrices. Our results extend those obtained by P.B.
Zalot, Ewelina.
core  

Some Classes of Jacobi Matrices and Schrödinger Operators [PDF]

open access: yes, 2014
This dissertation addresses two classes of Jacobi matrices and Schrödinger operators. First, we consider Jacobi matrices and Schrödinger operators that are reflectionless on an interval.
HUR, INJO
core  

On the spectrum of bisymmetric Jacobi almost-Toeplitz matrices [PDF]

open access: yes
The spectral theory of Jacobi matrices; i.e., real irreducible symmetric matrices J(a, b) with main diagonal a = (a1, . . ., an ) and second diagonal b = (b1, . .
Encinas Bachiller, Andrés Marcos   +2 more
core   +2 more sources

A Spectral Approach to Solve High-Order Ordinary Differential Equations: Improved Operational Matrices for Exponential Jacobi Functions

open access: yesMathematics
This paper presents a novel numerical approach to handling ordinary differential equations (ODEs) with initial conditions (ICs) by introducing generalized exponential Jacobi functions (GEJFs). These GFJFs satisfy the associated ICs.
Hany Mostafa Ahmed
doaj   +1 more source

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