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Activities

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Colloquium
Beginning2020-05-11 16:00:00
Ending2020-05-11 17:00:00
Event titleColloquium-Numerical ranges of matrix powers
Speaker王國仲教授(國立交通大學數學系)
Place1F Room 101, General Building III
DescriptionClick here to read
Attached file File download Adobe PDF
Reference link 
NoteAbstract:

For any n-by-n complex matrix A, its numerical range W(A) is defined by { x*Ax : x ϵ C^n, x*x=1 }. The study of the numerical range has a history of one hundred years now. It started with the amazing result of Toeplitz-Hausdorff that the numerical range is always a convex set in the plane. In this talk, we start to present some basic properties of the numerical range of a matrix. Then we will introduce some recent results and problems on this topic.

Last Update Time2020-05-04 09:21:14
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