Kalybay, A. and Shalginbayeva, S. 2024. Estimate of the Best Constant of Discrete Hardy-Type Inequality with Matrix Operator Satisfying the Oinarov Condition. Eurasian Mathematical Journal. 15, 2 (Jun. 2024), 42–47. DOI:https://doi.org/10.32523/2077-9879-2024-15-2-42-47.