Weekly bulletin

Find out what's happening this week at MSI.

11
Nov

Grothendieck regular polyhedra and triangular modular curves

  • Tuesday, 11 Nov 2025, 3 - 4pm

  • RM 1.33, Hanna Neumann Building #145

  • Caleb Ji (University of New South Wales)
Abstract: In connection with his theory of dessins d'enfants, Grothendieck proposed a program to study regular polyhedra which has largely gone unnoticed.  In this talk we will explain the main features of this proposed theory.  We will present progress towards resolving a classification question proposed by Grothendieck and discuss relations with the triangular modular curves constructed by Clark and Voight. 
12
Nov

CHERPY - the MSI Cryptic Crossword Event

  • Wednesday, 12 Nov 2025, 12:10 - 1:30pm

  • Rm 1.33, Hanna Neumann Building #145

Join us for CHERPY, the MSI Cryptic Crossword Challenge — a fun and interactive event supporting the MSI End of Year Celebrations.

Put your puzzle-solving skills to the test in this friendly battle of wits! Participants will form teams of two, but with a twist — to encourage community connection, we invite you to pair up with someone you haven’t interacted with much before. Whether it’s students teaming up with non-supervisor staff or colleagues from different research groups, it’s the perfect opportunity to meet new faces and enjoy some light-hearted competition

Bring your lunch, bring your curiosity, and get ready to solve some clever riddles and puzzles in a relaxed, collegial setting. All proceeds will go towards the MSI End-of-Year Celebrations.