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\(\newcommand{\Cat}{{\rm Cat}} \) \(\newcommand{\A}{\mathcal A} \) \(\newcommand{\freestar}{ \framebox[7pt]{$\star$} }\)

10. $K$-spectral sets for $\Omega\not\subset W(A)$


    1. Add remark

      Problem 10.1.

      [O. Nevanlinna] Use of lemniscates to bound $K$-spectral sets.

          Cite this as: AimPL: Crouzeix's conjecture, available at http://aimpl.org/crouzeix.