Birgebaev А., and Zhumagul Г. “ON THE SEPARATION OF A SINGLE OPERATOR IN THE SPACE 〖 L〗_p (R)”. Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences, vol. 91, no. 3, Sept. 2025, pp. 20-28, doi:10.51889/2959-5894.2025.91.3.002.