Two PhD students of the OCU Graduate School of Science, Yukiko Fukukawa and Yuriko Umemoto, won the prize for 'Young Mathematician', the highest award of the 5th Graduate Student Workshop held in the OCU Media Center from 25 to 29 July.

Two other OCU PhD students, Motoharu Sakurai and Hitoshi Yamanaka, received the prize for 'Best Presentation'.

The Graduate Student Workshop is a mathematics workshop that has been jointly organized every summer since 2007 by Osaka City University, Pusan National University (South-Korea) and Kyungpook National University (South-Korea).

From the 40 students who gave a lecture, 4 students received the prize for 'Young Mathematician' and 8 received a prize for 'Best Presentation'.

The lecture themes of the OCU prizewinners were as follows:

Young Mathematician Prize

Yukiko Fukukawa (OCU Graduate School of Science, PhD, 1st year)
Theme: "The cohomology ring of the GKM graph of a flag manifold of type G2"

Yuriko Umemoto (OCU Graduate School of Science, PhD, 1st year)
Theme: "On the growth functions of hyperbolic Coxeter groups"

Best Presentation Prize

Motoharu Sakurai (OCU Graduate School of Science, PhD, 1st year)
Theme: "On hypersurfaces in semi-Riemannian space forms and Lagrangian submanifolds of oriented 2-plane Grassmann manifolds"

Hitoshi Yamanaka (OCU Graduate School of Science, PhD, 3rd year)
Theme: "Intersection of stable and unstable manifolds for invariant Morse functions"