In minisymposium: Crouzeix's ConjectureMon 10:30–11:00, SW Raadzaal
I have conjectured that the following inequality
In this talk, I will describe different approaches and different mathematical tools used for getting bounds of this constant $\mathcal Q$. I will also provide some arguments supporting my conjecture and comment my numerical tests.
- M.Crouzeix, Numerical range and functional calculus in Hilbert space, Journal of Functional Analysis, vol. 244, 2007, pp. 668–690.
- M.Crouzeix, A functional calculus based on the numerical range. Applications, Linear and Multilinear Algebra, vol. 56, no. 1, 2008, pp. 81–103.