Dear Colleagues, Following the previous editions - held in Bari [UMI2025 <https://umi-math4aiml2025.uniba.it/>], Milan [UMI2024 <https://dec.unibocconi.eu/mathematics-artificial-intelligence-and-machine-learning>] and Turin [UMI2023 <https://umi.dm.unibo.it/gruppi-umi-2/gruppo-umi-aimlmat/>] - we are glad to announce the *4th workshop of the UMI Group *“Mathematics for Artificial Intelligence and Machine Learning <https://sites.google.com/uniroma1.it/umiworkshop2025/math4aiml-umi-workshop> ”, which will take place on *January 21-23, 2026*, at the *Mathematics Department of Sapienza University of Rome*. The invited speakers are Paola Antonietti (Politecnico di Milano) Annalisa Barla ( Università di Genova) Vincenzo Bonifaci (Università Roma Tre) Massimo Fornasier (Technische Universität München) Domenico Marinucci (Università degli Studi di Roma Tor Vergata) Pierpaolo Vivo (King's College London) The workshop focuses on the interplay between mathematics, artificial intelligence, and machine learning. Its aim is to encourage mathematical research in these areas, promote the dissemination of results, and facilitate interaction with other disciplines. The event will conclude the thematic period on Data Science within the *Eccellenza* Scientific Program of the Mathematics Department at Sapienza University of Rome. Further information about the program can be found on this page <https://sites.google.com/uniroma1.it/excellence-department/home>. In addition to invited talks, the program will feature contributed presentations and a poster session. To register, please visit the workshop website <https://sites.google.com/uniroma1.it/umiworkshop2025/math4aiml-umi-workshop>. Participation is free, but registration is required. Kind regards, The Scientific Committee Adriano Barra Alessandra De Rossi Ernesto De Vito Stefano Gualandi Giampaolo Leonardi Marco Maggesi Benedetta Morini Sandra Pieraccini Paolo Zunino The Organizing Committee Elena Agliari Adriano Barra Alberto Fachechi Giuseppe Visconti