Dear colleagues, It is a pleasure to let you know that Kathryn Hess Bellwald, professor at the Ecole Polytechnique Federale de Lausanne, will be the recipient of the Chaire de la Vallee Poussin 2023. The Chaire de la Vallee Poussin was created in honor of the great Belgian mathematician Charles-Jean de la Vall?e Poussin ( see https://uclouvain.be/fr/instituts-recherche/irmp/chaire-de-la-vallee-poussin... ). Kathryn Hess Bellwald will give a series of lectures on Homotopical perspectives on algebra and geometry at the Institut de Recherche en Mathematique et Physique (https://uclouvain.be/fr/instituts-recherche/irmp ) of the Universite catholique de Louvain. The first lecture, called the le?on inaugurale and accessible to a wide audience, is scheduled on Wednesday, 29 November, at 4.30 p.m. The title of the inaugural lecture is Hochschild homology: from classical to modern. The second lecture, entitled Homotopical perspectives on Morita and Hopf-Galois theory, will take place on Thursday 30 November at 4.30 p.m. The third lecture on Configuration spaces for product manifolds is scheduled on Friday 1st December at 10.45 a.m. On Friday 1st December at 1 p.m. Kathryn Hess Bellwald will give a lecture in French whose title will be Aventures mathematiques en neurosciences (accessible also to first year students). The abstracts of the lectures are available on the webpage of the conference at the address https://uclouvain.be/en/research-institutes/irmp/chaire-de-la-vallee-poussin... Looking forward to seeing you in Louvain-la-Neuve, best regards, Marino Gran Institut de Recherche en Math?matique et Physique Universite catholique de Louvain https://perso.uclouvain.be/marino.gran/ [For admin and other information see: http://www.mta.ca/~cat-dist/ ]