tba
","image_description":"","creation_date":"2026-09-20T13:23:48","last_modification_date":"2026-09-20T13:27:02","link_label":"","link_url":"https://www.epfl.ch/schools/sb/research/math/statistics-seminars/","canceled":"False","cancel_reason":"","place_and_room":"CM 1 517","url_place_and_room":"https://plan.epfl.ch/?room==CM%201%20517","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Johannes Schmidt-Hieber, WIAS Berlin","organizer":"Myrto Limnios","contact":"Maroussia Schaffner","is_internal":"False","theme":"","vulgarization":{"id":2,"fr_label":"Public averti","en_label":"Informed public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/121867/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/1/?format=json","https://memento.epfl.ch/api/v1/mementos/5/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json","https://memento.epfl.ch/api/v1/mementos/288/?format=json"]},{"id":72734,"title":"From Dimers to Maximal Surfaces in Minkowski Space R^{2,1}","slug":"from-dimers-to-maximal-surfaces-in-minkowski-space","event_url":"https://memento.epfl.ch/event/from-dimers-to-maximal-surfaces-in-minkowski-space","visual_url":null,"visual_large_url":null,"visual_maxsize_url":null,"lang":"en","start_date":"2026-10-07","end_date":"2026-10-07","start_time":"15:00:00","end_time":null,"description":"We discuss a class of graph embeddings into Minkowski space R^{2,2} = C^{1,1}, called t-surfaces, which arise in the study of the planar dimer model. A t-surface consists of a (perfect) t-embedding together with its associated origami map. Perfect t-embeddings were recently introduced as a key tool for proving that the gradient of the dimer height function converges to that of the Gaussian Free Field in a canonically associated metric, under suitable technical assumptions. After introducing the notion of a t-embedding, we will describe a construction of perfect t-embeddings for regular hexagons of the hexagonal lattice. In which the corresponding t-surfaces converge to space-like maximal surfaces in Minkowski space R^{2,1}. As a consequence, these constructions yield a new proof of convergence of fluctuations of the dimer height function to the Gaussian Free Field in the conformal structure induced by the limiting maximal surface.
","image_description":"","creation_date":"2026-10-01T16:38:56","last_modification_date":"2026-10-01T16:38:56","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"CM 1 517","url_place_and_room":"https://plan.epfl.ch/?room==CM%201%20517","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Marianna Russkikh","organizer":"Prof. Martin Hairer","contact":"Juliana Velasquez","is_internal":"False","theme":"","vulgarization":{"id":2,"fr_label":"Public averti","en_label":"Informed public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/122018/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/7/?format=json","https://memento.epfl.ch/api/v1/mementos/403/?format=json"]},{"id":72754,"title":"Exploring the ∞-categorical semantics of homotopy type theory","slug":"exploring-the-categorical-semantics-of-homotopy--2","event_url":"https://memento.epfl.ch/event/exploring-the-categorical-semantics-of-homotopy--2","visual_url":"https://memento.epfl.ch/image/33968/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/33968/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/33968/max-size.jpg","lang":"en","start_date":"2026-10-15","end_date":"2026-10-15","start_time":"10:00:00","end_time":"11:00:00","description":"This talk is meant to give an overview of the semantics of HoTT in (∞,1)-categories, tackling the key challenge of rigidification: the process of bridging homotopy-coherent notions phrased in models of higher categories such as quasicategories, and their type-theoretical counterparts that must account for the inherent strictness of type theory.
\r\nAfter quickly recalling the usual categorical semantics of extensional Martin-Löf type theory within locally cartesian closed category, the plan is to present some useful ideas to carry over some of the argument to the higher setting. Specifically, I will discuss the process of turning an elementary higher topos into a model of HoTT, and sketch important ideas used to prove the internal language conjecture for locally cartesian closed (∞,1)-categories.
\r\n
\r\n
A group homomorphism is called a geomorphsism in dimension n if it is the homomorphism induced on the fundamental groups by a map between closed orientable n-manifolds, this map being of nonzero degree. This turns out to be a quite interesting notion. In this talk, we shall discuss necessary and/or sufficient conditions for a group homomorphism to be a geomorphism in degree n>= 4.
\r\n
Chirality is omnipresent in nature through a fundamental coupling between chirality and angular momentum. Despite extensive experimental evidence, the underlying mechanisms of this coupling remain debated. Here, we will explore how chiral magnetic textures can be stabilized in altermagnets, a new class of magnetism. Turning to structurally chiral magnetic molecules, we will show that chirality is directly linked to their intrinsic magnetic moments. Bringing both together, we will discuss how molecular design can control spin phenomena at hybrid chiral molecule-magnet interfaces. Our findings pave a pathway towards functional \"chiraltronic\" devices – turning a fundamental puzzle into a technological opportunity.
","image_description":"","creation_date":"2026-10-01T09:59:25","last_modification_date":"2026-10-01T10:00:49","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"CM 1 5","url_place_and_room":"https://plan.epfl.ch/?room==CM%201%205","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Prof. Angela Wittmann, Johannes Gutenberg-Universität Mainz","organizer":"Institut de Physique","contact":"vladimir.manucharyan@epfl.ch","is_internal":"False","theme":"","vulgarization":{"id":1,"fr_label":"Tout public","en_label":"General public"},"registration":{"id":3,"fr_label":"Entrée libre","en_label":"Free"},"keywords":"","file":"https://memento.epfl.ch/public/upload/files/Wittmann12oct_Bl6EtiA.pdf","icalendar_url":"https://memento.epfl.ch/event/export/122008/","category":{"id":1,"code":"CONF","fr_label":"Conférences - Séminaires","en_label":"Conferences - Seminars","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/1/?format=json","https://memento.epfl.ch/api/v1/mementos/5/?format=json","https://memento.epfl.ch/api/v1/mementos/6/?format=json","https://memento.epfl.ch/api/v1/mementos/8/?format=json","https://memento.epfl.ch/api/v1/mementos/81/?format=json","https://memento.epfl.ch/api/v1/mementos/191/?format=json","https://memento.epfl.ch/api/v1/mementos/389/?format=json"]},{"id":72676,"title":"A Gaia-anchored Population-II route to the extragalactic distance scale","slug":"a-gaia-anchored-population-ii-route-to-the-extraga","event_url":"https://memento.epfl.ch/event/a-gaia-anchored-population-ii-route-to-the-extraga","visual_url":"https://memento.epfl.ch/image/33902/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/33902/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/33902/max-size.jpg","lang":"en","start_date":"2026-10-09","end_date":"2026-10-09","start_time":"16:30:00","end_time":null,"description":"Thesis Directors: Prof. J.-P. R. Kneib, Prof. R. I. Anderson
\r\nPhysics doctoral program
\r\nThesis Nr. 11973
\r\n
\r\nTo take part in the public defense, please contact directly the speaker
Components, measurements, wiring, and first circuit builds: everything you need to quickly go from idea to circuit!
","image_description":"","creation_date":"2026-09-28T13:16:59","last_modification_date":"2026-09-28T13:57:34","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"CM 1 5","url_place_and_room":"https://plan.epfl.ch/?room==CM%201%205","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/1/?format=json","https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Olive PetroffIntroduction to microcontroller programming, communications, analog circuits, and more!
","image_description":"","creation_date":"2026-09-28T13:24:46","last_modification_date":"2026-09-28T13:57:42","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"CM 1 5","url_place_and_room":"https://plan.epfl.ch/?room==CM%201%205","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/1/?format=json","https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Olive PetroffModeling, slicing, rapid prototyping:
\r\nLearn to see your mechanical projects through to completion.
Thesis Director: Prof. K. Sivula,
\r\nChemistry and Chemical Engineering doctoral program
\r\nThesis Nr. 11708
\r\n
\r\nTo take part in the public defense, please contact directly the speaker