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Strauss, M. (2013) The Second Order Spectrum and Optimal Convergence. Mathematics of Computation, 82, 2305-2325.
https://doi.org/10.1090/S0025-5718-2013-02693-2

has been cited by the following article:

• TITLE: Computing the Enclosures Eigenvalues Using the Quadratic Method

  AUTHORS: Shurouq Mohammad Abusamra

  KEYWORDS: Quadratic Method, Enclosures Eigenvalues, Boulton and Strauss Method

  JOURNAL NAME: Applied Mathematics, Vol.10 No.4, April 24, 2019

  ABSTRACT: In this article, we compute the enclosures eigenvalues (upper and lower bounds) using the quadratic method. The Schrodinger operator (A) (harmonic and anharmonic oscillator model) has used as an example. We study a new technique to get more accurate bounds. We compare our results with Boulton and Strauss method.