21 citations · 42 across the 40 of their papers we have counts for
Showing 2022Show all
2 papers · 1 filter
math.FA2022
On low-dimensional partial isometries
Qixiao He, Ilya M. Spitkovsky, Ibrahim Suleiman
Two statements concerning -by- partial isometries are being considered: (i) these matrices are generic, if unitarily irreducible, and (ii) if nilpotent, their numerical range…
math.FA2022
Numerical ranges of Foguel operators revisited
Muyan Jiang, Ilya M. Spitkovsky
The Foguel operator is defined as , where is the right shift on a Hilbert space and can be an arbitrary bound…