Title of article :
Weylʹs theorem and tensor products: A counterexample
Author/Authors :
Kitson، نويسنده , , Derek and Harte، نويسنده , , Robin and Hernلndez، نويسنده , , Carlos، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2011
Abstract :
Approximately fifty percent of Weylʹs theorem fails to transfer from Hilbert space operators to their tensor product. As a biproduct we find that the product of circles in the complex plane is a limaçon.
Keywords :
Limaçon , Weylיs theorem , Tensor product , Shifts , Spectral picture , Browderיs theorem
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications
