During Yu Mytropolsky's directorship (1958-88), the institute experienced a great expansion in research personnel and mathematical disciplines, and an improvement in the quality of research.
Sa panahon ng Yu Mytropolsky ng patnugot (1958-88), ang magtatag ng isang mahusay na pagpapalaki sa pananaliksik tauhan at matematika disciplines, at isang pagpapabuti sa kalidad ng pananaliksik.