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 91, no. 3 (September 27, 2025): 20–28. Accessed May 8, 2026. https://bulletin-phmath.kaznpu.kz/index.php/ped/article/view/2497.