Conditionally positive definite unilateral weighted shifts

Zenon Jan Jabłoński, Il Bong Jung, Eun Young Lee +1

In a recent paper [15], Hilbert space operators $T$ with the property that each sequence of the form $\{\Vert T^{n}h{\Vert }^2{\}}_{n=0}^{\infty }$ is conditionally positive definite in a semigr…