Dear all, A call for applications for 12 PhD positions at the University of Bologna has just been announced, with deadline June 20, 2023. Italian version: https://www.unibo.it/it/didattica/dottorati/2023-2024/matematica English version: https://www.unibo.it/en/teaching/phd/2023-2024/mathematics One of these positions is funded by the ERC project "Definable algebraic topology" and is reserved for candidates who plan to work on this project, which focuses on interactions between logic, algebraic topology, and homological algebra. Please feel free to forward this announcement to anyone who might be interested. I will be happy to answer any question anyone might have on this opportunity. Best, Martino