Definition of "isospectral" []

• Having the same spectrum (adjective)

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• "The publication presents a number of keynote papers, highlighting recent developments in the field, namely large scale SVD applications, isospectral matrix flows, Riemannian SVD and consistent signal reconstruction."
• "I’m told that potentials from the Linear Harmonic Oscillator, or any other isospectral oscillator appears in disguise when dealing with homogeneous gases, since the equidistant energy levels stand for transitions occurring when integer number of particles entering or leaving the system."