Writing Together Online offers structured time to help you spring into writing and stay focused this semester. We offer writing sessions every workday, Monday through Friday. Join our daily 90-minute writing sessions and become part of a community of scholars who connect online, set realistic goals, and write together in the spirit of accountability and camaraderie. The program is open to all MIT students, postdocs, faculty, staff, and affiliates who are working on papers, proposals, thesis/dissertation chapters, application materials, and other writing projects. For more information and to register, go to this link or check the WCC website. Please spread the word and join with colleagues and friends.Register for Spring 2025 Writing Challenge 1Choose those sessions that you want to attend during Challenge 1: February 10th through March 21stMondays 9:00–10:30amTuesdays 8–9:30am and 9:30–11amWednesdays 9:00–10:30amThursdays 8–9:30am and 9:30–11amFridays 8–9:30am and 9:30–11amMIT Students and postdocs who attend at least 5 sessions per challenge will be entered into a raffle of three $25 Amazon gift cards. The raffle will take place on Friday, March 21st. The more you participate, the more times you will be entered into the raffle of prizes.For more information and to register, check the WCC website. Please spread the word and join with peers and friends.The funding support for this program comes from the Office of Graduate Education

Speaker: Alex Lubotzky (Weizmann Institute & the Hebrew University, Simons Distinguished Visiting Professor, MIT)Title: High Dimensional Expanders (HDX) and their applications in pure math and computer scienceAbstract:Expander graphs have been an intensive topic of research in math and CS during the last six decades. In the last two decades a high dimensional theory has emerged with (very different) applications in math & CS.In this series of 8 independent (but related) lectures we present some aspects of the theory of HDX and its applications, a number of open problems and suggestions for further research.A more detailed plan:1. Thursday 2/20/25, 4:30pm, 2-190 (Math Colloquium); refreshments served at 4pm in 2-290  Introduction: three main problems(a) Gromov overlapping property(b) Locally testable codes(c) Are all groups sofic?2. Tuesday 2/25/25, 4:15-5:15pm, 32-G449 (Theory of Computing Colloquium), refreshments served at 4pmGood Locally testable codes3. Wednesday 2/26/25, 9:30-11am, 2-449Expander graphs: combinatorics, spectral gap, representation theory(Kazhdan property (T), property (\tau) and more) and property testing4. Wednesday 3/5/25, 9:30-11am, 2-449Geometric & topological expanders, Coboundary expanders, Random simplicial complexes and Property testing5. Wednesday 3/12/25, 9:30-11am, 2-449From Ramanujan graphs to Ramanujan complexes6. Wednesday 3/19/25, 9:30-11am, 2-449Stability and group approximation, Garland Theorem and the p-adic Deligne central extensionsWednesday 3/26/25 - Spring vacation7. Wednesday 4/2/26, 9:30-11am, 2-449Some more CS: Agreement tests, direct product test; PCP8. Wednesday 4/9/25, 9:30-11am, 2-449Are there non-sofic groups? The Aldous-Lyons conjecture and more

Hidden within MIT’s Distinctive Collections, many architectural elements from the earliest days of the Institute’s architecture program still survive as part of the Rotch Art Collection. Among the artworks that conservators salvaged was a set of striking windows of gypsum and stained-glass, dating to the late 18th- to 19th c. Ottoman Empire. This exhibition illuminates the life of these historic windows, tracing their refracted histories from Egypt to MIT, their ongoing conservation, and the cutting-edge research they still prompt.The Maihaugen Gallery (14N-130) is open Monday through Thursday, 10am - 4pm, excluding Institute holidays.

Time: 10:00 AM/6:00 PMLocation: Greensboro, NC

Join a member of our Visitor Experience Team for this 45-minute introductory tour of the MIT Museum. Learn about the collection, our history, and get your questions answered by our gallery experts. Space is limited, please speak to a visitor experience representative at the admission desk when purchasing museum tickets if you would like to participate in the tour.Every Wednesday at 11am Free with museum admission

Time: 10:00 AM/6:00 PMLocation: Greensboro, NC