2 papers
math.FA2024
Contractivity of Möbius functions of operators
Thomas Ransford, Dashdondog Tsedenbayar
Let be a injective bounded linear operator on a complex Hilbert space. We characterize the complex numbers for which is a contraction, the characteriz…
math.FA2024
On the real and imaginary parts of powers of the Volterra operator
Thomas Ransford, Dashdondog Tsedenbayar
We study the real and imaginary parts of the powers of the Volterra operator on , specifically their eigenvalues, their norms and their numerical ranges.