Dear colleagues and friends, We would like to draw your attention to the open call for 6 Ph.D. positions for the doctoral program in "Mathematics in Natural, Social and Life Sciences" at the Gran Sasso Science Institute (GSSI) in L’Aquila (Italy). Please find further details in the official call, available on https://applications.gssi.it/applications/index.php?op=login&type=phd or the related MathJobs post (https://www.mathjobs.org/jobs/list/26572). The application deadline is June 9, 2025 (at 3 pm CET). Applications are submitted through the GSSI application portal (https://applications.gssi.it/applications/index.php?op=login&type=phd). The start date of the Ph.D. program is November 1, 2025. We would be grateful if you could circulate this announcement among potentially interested candidates. Please also find attached a printable version of our program flyer. For questions and general inquiries, please contact us at applications@gssi.it. Best regards, Alessia Nota