2 Hryvni Heorhii Voronyi

Issued to commemorate Heorhii Voronyi (1868–1908), the Ukrainian mathematician who made foundational contributions to number theory and geometry. His doctoral dissertation introduced what are now called Voronoi diagrams — spatial decomposition structures ubiquitous in computational geometry, cell biology modeling, and urban planning algorithms. The centenary of his death prompted this issue.

Voronyi spent most of his academic career at Warsaw University under the Russian Imperial system, publishing in French and German to reach the mathematical community that largely ignored Ukrainian scholarship at the time.