Results 11 to 20 of about 2,535,841 (289)

When is the Resolvent Like a Rank One Matrix?

open access: yesSIAM Journal on Matrix Analysis and Applications
. For a square matrix [Formula: see text], the resolvent of [Formula: see text] at a point [Formula: see text] that is not an eigenvalue of [Formula: see text] is defined as [Formula: see text].
Anne Greenbaum   +2 more
semanticscholar   +4 more sources

On Laplacian resolvent energy of graphs [PDF]

open access: yesTransactions on Combinatorics, 2023
Let $G$ be a simple connected graph of order $n$ and size $m$. The matrix $L(G)=D(G)-A(G)$ is the Laplacian matrix of $G$, where $D(G)$ and $A(G)$ are the degree diagonal matrix and the adjacency matrix, respectively. For the graph $G$, let $d_{1}\geq d_{
Sandeep Bhatnagar   +2 more
doaj   +1 more source

Affine Kac-Moody Algebras and Tau-Functions for the Drinfeld-Sokolov Hierarchies: the Matrix-Resolvent Method [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2021
For each affine Kac-Moody algebra $X_n^{(r)}$ of rank $\ell$, $r=1,2$, or $3$, and for every choice of a vertex $c_m$, $m=0,\dots,\ell$, of the corresponding Dynkin diagram, by using the matrix-resolvent method we define a gauge-invariant tau-structure ...
B. Dubrovin, Daniele Valeri, Di Yang
semanticscholar   +1 more source

About the Resolvent Kernel of Neutral Linear Fractional System with Distributed Delays

open access: yesMathematics, 2022
The present work considers the initial problem (IP) for a linear neutral system with derivatives in Caputo’s sense of incommensurate order, distributed delay and various kinds of initial functions.
Hristo Kiskinov   +2 more
doaj   +1 more source

On Stability Criteria Induced by the Resolvent Kernel for a Fractional Neutral Linear System with Distributed Delays

open access: yesMathematics, 2023
We consider an initial problem (IP) for a linear neutral system with distributed delays and derivatives in Caputo’s sense of incommensurate order, with different kinds of initial functions.
Ekaterina Madamlieva   +2 more
doaj   +1 more source

On the S-matrix of Schrödinger operator with nonlocal δ-interaction [PDF]

open access: yesOpuscula Mathematica, 2021
Schrödinger operators with nonlocal \(\delta\)-interaction are studied with the use of the Lax-Phillips scattering theory methods. The condition of applicability of the Lax-Phillips approach in terms of non-cyclic functions is established.
Anna Główczyk, Sergiusz Kużel
doaj   +1 more source

On the resolvent condition in the Kreiss Matrix Theorem [PDF]

open access: yesBIT, 1984
Let \(A\) be an \(N\times N\) matrix. Let \(p(A)=\sup_{n\geq 0}\| A^ n\|\) and \(r(A)=\sup_{| z| >1}(| z| -1)\| (zI- A)^{-1}\|\), where \(\| \cdot \|\) is the Euclidean norm. If \(p(A)
LeVeque, Randall J., Trefethen, Lloyd N.
openaire   +1 more source

Linear differential equations for the resolvents of the classical matrix ensembles [PDF]

open access: yesRandom Matrices: Theory and Applications, 2020
The spectral density for random matrix [Formula: see text] ensembles can be written in terms of the average of the absolute value of the characteristic polynomial raised to the power of [Formula: see text], which for even [Formula: see text] is a polynomial of degree [Formula: see text].
Anas A. Rahman, Peter J. Forrester
openaire   +3 more sources

On a generalization of the resolvent condition in the Kreiss matrix theorem [PDF]

open access: yesMathematics of Computation, 1991
This paper deals with a condition on the resolvent of s x s matrices A . In one of the equivalent assertions of the Kreiss matrix theorem, the spectral norm of the resolvent of A at 4 must satisfy an inequality for all 4 lying outside the unit disk in C.
H. W. J. Lenferink, M. N. Spijker
openaire   +1 more source

Resolvent analysis of a finite wing in transonic flow

open access: yesFlow, 2023
Shock waves interacting with turbulent boundary layers on wings can result first in self-sustained flow unsteadiness and eventually in structural vibration.
Jelle Houtman   +2 more
doaj   +1 more source

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