Results 51 to 60 of about 3,138,968 (195)

Discrete Tracy--Widom operators. [PDF]

open access: yes, 2009
Integrable operators arise in random matrix theory, where they describe the asymptotic eigenvalue distribution of large self-adjoint random matrices from the generalized unitary ensembles.
McCafferty, Andrew, Blower, Gordon
core   +4 more sources

Pick matrix conditions for sign-definite solutions of the algebraic Riccati equation [PDF]

open access: yes, 2001
We study the existence of positive and negative semidefinite solutions of algebraic Riccati equations (ARE) corresponding to linear quadratic problems with an indefinite cost functional.
Rapisarda, P.   +9 more
core   +3 more sources

The Relationship Between Semiclassical Laguerre Polynomials and the Fourth Painlevé Equation [PDF]

open access: yes, 2013
We discuss the relationship between the recurrence coefficients of orthogonal polynomials with respect to a semiclassical Laguerre weight and classical solutions of the fourth Painlevé equation. We show that the coefficients in these recurrence relations
Clarkson, Peter   +3 more
core   +1 more source

Special solutions of matrix Gellerstedt equation

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
Fundamental solutions for the Gellerstedt equation and its generalization were obtained in the distribution space using the method applied by I. M. Gelfand and J. Barros-Neto to the studying the Tricomi equation. The degenerating system of the mixed-type
Elena A Kozlova
doaj   +3 more sources

Computing the matrix square root: A problem-solving approach using Mathematica and Pólya's strategies [PDF]

open access: yesAUT Journal of Mathematics and Computing
This paper introduces a novel method for solving the matrix equation $X^2 - A = 0$ by computing matrix square roots. Inspired by George Pólya's structured problem-solving strategies and leveraging Wolfram Mathematica, the approach offers a systematic ...
Mandana Moccari
doaj   +1 more source

A matrix equation for association schemes [PDF]

open access: yesGraphs and Combinatorics, 1995
{Let ${\Cal X}$ be a self-dual P-polynomial association scheme. Then there are at most 12 diagonal matrices $T$ such that $(PT)^3=I$. Moreover, all of the solutions for the classical infinite families of such schemes (including the Hamming scheme) are classified.
Laura M. Chihara, Dennis Stanton
openaire   +4 more sources

Robust Pole Assignment via Sylvester Equation Based State Feedback Parametrization [PDF]

open access: yes, 2000
By using a Sylvester equation based parametrization, the minimum norm robust pole assignment problem for linear time-invariant systems is formulated as an unconstrained minimization problem for a suitably chosen cost function.
Varga, Andras
core  

All Solutions of the Yang–Baxter-Like Matrix Equation for Nilpotent Matrices of Index Two

open access: yesComplexity, 2020
Let A be a nilpotent matrix of index two, and consider the Yang–Baxter-like matrix equation AXA=XAX. We first obtain a system of matrix equations of smaller sizes to find all the solutions of the original matrix equation.
Duanmei Zhou, Jiawen Ding
doaj   +1 more source

Characteristic polynomials of complex random matrix models [PDF]

open access: yes, 2002
We calculate the expectation value of an arbitrary product of characteristic polynomials of complex random matrices and their hermitian conjugates. Using the technique of orthogonal polynomials in the complex plane our result can be written in terms of
Akemann, G   +3 more
core   +1 more source

Legendre collocation method and its convergence analysis for the numerical solutions of the conductor-like screening model for real solvents integral equation

open access: yesBulletin of Computational Applied Mathematics, 2016
In this paper, a reliable algorithm for solving the nonlinear Hammerstein integral equation arising from chemical phenomenon is presented. The conductor-like screening model for real solvents (COSMO-RS) integral equation will be solved by the shifted ...
Esmail Hesameddini, Mehdi Shahbazi
doaj  

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