Аннотация:
We give a new proof of the Ostapenko–Tarasov unicellularity theorem for the
classical Volterra integration operator on the space
$C^{(n)}[0,1]$.
The work of the first author was supported by ongoing institutional funding.
The work of second author was supported by the Research Support Project
no. RSPD2024R1056, King Saud University, Riyadh, Saudi Arabia.