Awards & Prizes

DATE2024.05.10 #Awards & Prizes

Project Professor Shihoko Ishii received the Order of the Sacred Treasure, Gold Rays with Neck Ribbon

Project Professor Shihoko Ishii

Professor Shihoko Ishii, Emeritus Professor and Project Professor at the Graduate School of Mathematical Sciences, received the Order of the Sacred Treasure, Gold Rays with Neck Ribbon, in the 2024 Spring Conferment of Decoration. This honor follows her receiving the Saruhashi Prize in 1995, the Algebra Prize of the Mathematical Society of Japan in 2011, and the Imperial Prize and the Japan Academy Prize in 2021.

Professor Ishii is one of Japan's leading mathematicians in singularity theory, and her work is highly regarded worldwide. Singularities appear in various aspects of geometry and analysis and cause many kinds of difficulties. Singularity theory considers them as rich research objects and analyzes their properties and structures. A figure defined as the set of common zeros of a collection of polynomials is called an algebraic variety, and she has studied singularities of algebraic varieties from the viewpoint of algebraic geometry: a birational geometric study of Du Bois singularities, a negative solution to the Nash problem posed by J.F. Nash, a combinatorial description of arc spaces of toric varieties, the introduction of Mather-Jacobian discrepancies, and many other remarkable achievements.

As a role model for female researchers, she has also been actively involved in supporting female researchers and promoting diversity. Her efforts have had a significant impact not only in academia but also in the real world.

We would like to extend our sincere congratulations on receiving this award and wish her continued success in her future endeavors.

Spring 2024 Decoration

(Responsibility: Professor Shunsuke Takagi, Graduate School of Mathematical Sciences)