{"count":238,"next":null,"previous":"https://memento.epfl.ch/api/v1/events/?format=json&limit=10&offset=220&ordering=creation_date","results":[{"id":71443,"title":"Mathematics Colloquium","slug":"mathematics-colloquium-13","event_url":"https://memento.epfl.ch/event/mathematics-colloquium-13","visual_url":"https://memento.epfl.ch/image/32790/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32790/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32790/max-size.jpg","lang":"en","start_date":"2026-06-17","end_date":"2026-06-17","start_time":"16:15:00","end_time":"17:15:00","description":"Title: 
\r\nPositive random walks and positive-semidefinite random matrices
\r\n
\r\nAbstract:
\r\nOn the real line, a random walk that can only move in the positive direction is very unlikely to remain close to its origin. After a fixed number of steps, the left tail has a Gaussian profile under minimal assumptions. Remarkably, a similar phenomenon occurs when we consider a positive random walk on the cone of positive-semidefinite matrices. After a fixed number of steps, the minimum eigenvalue is described by a Gaussian random matrix model.
\r\nThis talk introduces a new way to make this intuition rigorous. The methodology addresses an open problem in computational mathematics about sparse random embeddings. The presentation targets a general mathematical audience.
\r\nPreprint: https://arxiv.org/abs/2501.16578
\r\n
\r\nPlease register on the following form : https://forms.gle/ppXwKo9HmTgFk3rc7","image_description":"","creation_date":"2026-04-01T11:03:30","last_modification_date":"2026-04-01T11:03:45","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"BCH 2201","url_place_and_room":"https://plan.epfl.ch/?room==BCH%202201","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Prof. Joel A. Tropp, Steele Family Professor of Applied & Computational Mathematics, Caltech","organizer":"Prof. Nicolas Boumal","contact":"Institute of Mathematics","is_internal":"True","theme":"","vulgarization":{"id":2,"fr_label":"Public averti","en_label":"Informed public"},"registration":{"id":2,"fr_label":"Sur invitation","en_label":"Invitation required"},"keywords":"","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120257/","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/402/?format=json","https://memento.epfl.ch/api/v1/mementos/5/?format=json","https://memento.epfl.ch/api/v1/mementos/7/?format=json"]},{"id":71514,"title":"Plasmonic Nanostructure Biosensors for Continuous Monitoring and Multiplexed Profiling with Ultra-Broad Dynamic Range","slug":"plasmonic-nanostructure-biosensors-for-continuou-4","event_url":"https://memento.epfl.ch/event/plasmonic-nanostructure-biosensors-for-continuou-4","visual_url":"https://memento.epfl.ch/image/32850/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32850/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32850/max-size.jpg","lang":"en","start_date":"2026-04-27","end_date":"2026-04-27","start_time":"17:00:00","end_time":null,"description":"

Thesis Director: Prof. H. Altug,
\r\nBiotechnology and Bioengineering doctoral program
\r\nThesis Nr. 11156
\r\n
\r\nTo take part in the public defense, please contact directly the speaker

","image_description":"","creation_date":"2026-04-01T14:17:26","last_modification_date":"2026-04-01T14:17:27","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"MXF 1","url_place_and_room":"https://plan.epfl.ch/?room==MXF%201","url_online_room":"","spoken_languages":[],"speaker":"Abtin SAATEH","organizer":"","contact":"Abtin SAATEH","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":"EDBB","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120262/","category":{"id":12,"code":"SOUTE","fr_label":"Soutenances de thèses","en_label":"Thesis defenses","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/9/?format=json"]},{"id":71515,"title":"Application of a multi-rate state observer for real-time plasma density reconstruction and control on TCV","slug":"application-of-a-multi-rate-state-observer-for-r-2","event_url":"https://memento.epfl.ch/event/application-of-a-multi-rate-state-observer-for-r-2","visual_url":"https://memento.epfl.ch/image/32851/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32851/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32851/max-size.jpg","lang":"en","start_date":"2026-04-10","end_date":"2026-04-10","start_time":"17:00:00","end_time":null,"description":"

Thesis Directors: Dr. O. Sauter, Dr F. A. A. Felici
\r\nPhysics doctoral program
\r\nThesis Nr. 11288
\r\n
\r\nTo take part in the public defense, please contact directly the speaker

","image_description":"","creation_date":"2026-04-01T14:32:11","last_modification_date":"2026-04-01T14:32:56","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"CE 1 3","url_place_and_room":"https://plan.epfl.ch/?room==CE%201%203","url_online_room":"","spoken_languages":[],"speaker":"Francesco PASTORE","organizer":"","contact":"Francesco PASTORE","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":"EDPY","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120264/","category":{"id":12,"code":"SOUTE","fr_label":"Soutenances de thèses","en_label":"Thesis defenses","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/5/?format=json"]},{"id":71516,"title":"Xenon Dynamic Nuclear Polarization: from Spin Dynamics to In-Vivo Applications","slug":"xenon-dynamic-nuclear-polarization-from-spin-dyn-2","event_url":"https://memento.epfl.ch/event/xenon-dynamic-nuclear-polarization-from-spin-dyn-2","visual_url":"https://memento.epfl.ch/image/32852/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32852/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32852/max-size.jpg","lang":"en","start_date":"2026-04-24","end_date":"2026-04-24","start_time":"17:00:00","end_time":null,"description":"

Thesis Directors: Prof. R. Gruetter, Dr A. Capozzi
\r\nPhysics doctoral program
\r\nThesis Nr. 11427
\r\n
\r\nTo take part in the public defense, please contact directly the speaker

","image_description":"","creation_date":"2026-04-01T14:42:56","last_modification_date":"2026-04-01T14:42:58","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"CE 1 4","url_place_and_room":"https://plan.epfl.ch/?room==CE%201%204","url_online_room":"https://epfl.zoom.us/j/66418358152?pwd=kRVVP5y6NGjH4pDROhIPv7t0zIpSvI.1","spoken_languages":[],"speaker":"Emma Linnea WISTRÖM","organizer":"","contact":"Emma Linnea WISTRÖM","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":"EDPY","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120266/","category":{"id":12,"code":"SOUTE","fr_label":"Soutenances de thèses","en_label":"Thesis defenses","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/5/?format=json"]},{"id":71525,"title":"Surface Engineering of Oxide-Supported Catalysts for Renewable Chemistry","slug":"surface-engineering-of-oxide-supported-catalysts-f","event_url":"https://memento.epfl.ch/event/surface-engineering-of-oxide-supported-catalysts-f","visual_url":"https://memento.epfl.ch/image/32864/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32864/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32864/max-size.jpg","lang":"en","start_date":"2026-05-15","end_date":"2026-05-15","start_time":"16:00:00","end_time":null,"description":"

Thesis Director: Prof. J. Luterbacher,
\r\nChemistry and Chemical Engineering doctoral program
\r\nThesis Nr. 11207
\r\n
\r\nTo take part in the public defense, please contact directly the speaker

","image_description":"EDCH","creation_date":"2026-04-01T16:19:08","last_modification_date":"2026-04-01T16:19:08","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"BCH 2201","url_place_and_room":"https://plan.epfl.ch/?room==BCH%202201","url_online_room":"https://epfl.zoom.us/j/63780929780?pwd=8IhwwNv7M9CIkpLmHFHbhz4aEyFMMj.1","spoken_languages":[],"speaker":"Yu-Cheng LIN","organizer":"","contact":"Yu-Cheng LIN
\r\n ","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":"EDCH","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120276/","category":{"id":12,"code":"SOUTE","fr_label":"Soutenances de thèses","en_label":"Thesis defenses","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/5/?format=json"]},{"id":71528,"title":"Wave decay on slowly-rotating extremal Kerr-Newman black holes","slug":"wave-decay-on-slowly-rotating-extremal-kerr-newman","event_url":"https://memento.epfl.ch/event/wave-decay-on-slowly-rotating-extremal-kerr-newman","visual_url":"https://memento.epfl.ch/image/32866/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32866/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32866/max-size.jpg","lang":"en","start_date":"2026-05-22","end_date":"2026-05-22","start_time":"14:15:00","end_time":null,"description":"
\r\nAbstract: 
\r\nIn this talk, I will discuss the decay of solutions to the wave equation on slowly-rotating Kerr-Newman black holes. The behavior of waves on extremal spherically symmetric black holes and axisymmetric waves on rotational extremal black holes has seen remarkable recent developments. I will discuss how these developments can be extended to the case of slowly-rotating Kerr-Newman, highlighting the similarities between the structure of the wave operator at null infinity and the structure of the wave operator at the extremal horizon. 
\r\n ","image_description":"","creation_date":"2026-04-01T19:39:32","last_modification_date":"2026-04-01T19:44:53","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"MA B1 11","url_place_and_room":"https://plan.epfl.ch/?room==MA%20B1%2011","url_online_room":"","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Dr Allen Fang, University of Muenster","organizer":"Prof. Georgios Moschidis","contact":"Prof. Georgios Moschidis","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":null,"icalendar_url":"https://memento.epfl.ch/event/export/120280/","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"]},{"id":71529,"title":"Contributions to the Modeling of Hydraulic Stimulation Using Semi-Analytical and Coupled Numerical Approaches","slug":"contributions-to-the-modeling-of-hydraulic-stimu-2","event_url":"https://memento.epfl.ch/event/contributions-to-the-modeling-of-hydraulic-stimu-2","visual_url":"https://memento.epfl.ch/image/32867/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32867/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32867/max-size.jpg","lang":"en","start_date":"2026-04-15","end_date":"2026-04-15","start_time":"17:30:00","end_time":null,"description":"

Thesis Director: Prof. B. T. A. Lecampion,
\r\nMechanics doctoral program
\r\nThesis Nr. 11652
\r\n
\r\nTo take part in the public defense, please contact directly the speaker

","image_description":"","creation_date":"2026-04-02T09:47:04","last_modification_date":"2026-04-02T09:47:07","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"ELA 1","url_place_and_room":"https://plan.epfl.ch/?room==ELA%201","url_online_room":"https://epfl.zoom.us/j/64560919684?pwd=qnpUiRjHSLugxUaXBptYPY20lmJogb.1","spoken_languages":[],"speaker":"Regina FAKHRETDINOVA  ","organizer":"","contact":"Regina FAKHRETDINOVA","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":"EDME","file":null,"icalendar_url":"https://memento.epfl.ch/event/export/120282/","category":{"id":12,"code":"SOUTE","fr_label":"Soutenances de thèses","en_label":"Thesis defenses","activated":true},"academic_calendar_category":null,"domains":[],"mementos":["https://memento.epfl.ch/api/v1/mementos/4/?format=json"]},{"id":71536,"title":"MARVEL Junior Seminar","slug":"marvel-junior-seminar-25","event_url":"https://memento.epfl.ch/event/marvel-junior-seminar-25","visual_url":"https://memento.epfl.ch/image/32873/200x112.jpg","visual_large_url":"https://memento.epfl.ch/image/32873/720x405.jpg","visual_maxsize_url":"https://memento.epfl.ch/image/32873/max-size.jpg","lang":"en","start_date":"2026-04-17","end_date":"2026-04-17","start_time":"12:15:00","end_time":"13:30:00","description":"

The MARVEL Junior Seminar series is continuing in hybrid mode, in order to maintain in-person contacts and allow off-campus attendees to follow the seminars remotely! The MARVEL Junior Seminars aim to intensify interactions between the MARVEL Junior scientists belonging to different research groups. The seminar consists of two 25-minute presentations, followed by time for discussion.
\r\n
\r\nZacharie Waysenson
\r\nLaboratoire de Physique de l’École Normale Supérieure, Sorbonne Université
\r\n
\r\nMaria Andolfatto
\r\nLaboratory for Materials Simulations, PSI

","image_description":"","creation_date":"2026-04-02T12:21:18","last_modification_date":"2026-04-02T12:21:20","link_label":"","link_url":"","canceled":"False","cancel_reason":"","place_and_room":"MED 2 1124 (Coviz2)","url_place_and_room":"https://plan.epfl.ch/?room==MED%202%201124","url_online_room":"https://epfl.zoom.us/j/64619111138?pwd=qJvSjGklvQhNr9PbsYXIATDjHOqrwr.1","spoken_languages":["https://memento.epfl.ch/api/v1/spoken_languages/2/?format=json"],"speaker":"Zacharie Waysenson (Sorbonne Université) + Maria Andolfatto (PSI)","organizer":"NCCR MARVEL","contact":"Francesca Olgiati, MARVEL Program Manager","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/120291/","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/6/?format=json","https://memento.epfl.ch/api/v1/mementos/8/?format=json","https://memento.epfl.ch/api/v1/mementos/27/?format=json","https://memento.epfl.ch/api/v1/mementos/191/?format=json"]}]}