Supriya Ghosh (Editor)

Spectral gap

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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.

See:

  • Expander graph (discrete case)
  • Poincaré inequality (continuous case)
  • References

    Spectral gap Wikipedia


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