Using least-squares to find an approximate eigenvector

Hecker, David; Lurié, D.

doi:10.13001/1081-3810.1186

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Approximate Eigenvalues1

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2022

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Cited by 3 publications

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“…In this section, we show an application of Theorem 3.5 in investigation of the approximate eigenvalues and eigenvectors, which corresponds to the results in [36,47].…”

Section: Approximate Eigenvaluesmentioning

confidence: 88%

A fixed point theorem and Ulam stability of a general linear functional equation in random normed spaces

Benzarouala

Brzdęk

Oubbi

2022

J. Fixed Point Theory Appl.

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We prove a very general fixed point theorem in the space of functions taking values in a random normed space (RN-space). Next, we show several of its consequences and, among others, we present applications of it in proving Ulam stability results for the general inhomogeneous linear functional equation with several variables in the class of functions f mapping a vector space X into an RN-space. Particular cases of the equation are for instance the functional equations of Cauchy, Jensen, Jordan–von Neumann, Drygas, Fréchet, Popoviciu, the polynomials, the monomials, the p-Wright affine functions, and several others. We also show how to use the theorem to study the approximate eigenvalues and eigenvectors of some linear operators.

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“…In this section, we show an application of Theorem 3.5 in investigation of the approximate eigenvalues and eigenvectors, which corresponds to the results in [36,47].…”

Section: Approximate Eigenvaluesmentioning

confidence: 88%