In mathematics, the spectral gap is the difference between the moduli of the two largest eigenvalues of a matrix or operator; alternately, it is sometimes taken as the smallest non-zero eigenvalue. Various theorems relate this difference to other properties of the system.
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Spectral gaps via additive combinatorics - Semyon Dyatlov
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Timothy Gowers: Erdős and arithmetic progressions
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See also
- Cheeger constant (graph theory)
- Cheeger constant (Riemannian geometry)
- Eigengap
- Spectral gap (physics)
- Spectral radius
References
External links
This page was last edited on 12 August 2023, at 18:51