With sadness, we have learned that our friend and mentor Qi Mingyou suddenly and unexpectedly passed away today.

We admire his mathematical contributions that were obtained in a difficult time, his enthusiasm for science, his wide ranging intellect and his enormous and lasting achievements in steering Wuhan University through turbulent times and building the Wuhan School of Mathematics,. We fondly remember his kind, generous and inspiring personality,

Jürgen Jost, Augest 10, 2021