In this webinar, hosted by MIT Open Learning, authors from the AI + Open Education Initiative will discuss rapid response papers on the topics of professional education, the judicious use of AI, and open practices. The following papers and authors will be spotlighted:Addressing Challenges in Faculty Professional Development: UDL Training through AI-Enhanced OER in a Non-English Context with Aigerim ShilibekovaJudicious AI Use to Improve Existing OER with Royce Kimmons and Torrey TrustBefore opening to audience questions, speakers will engage with respondent Clint Lalonde, the director of Open Education at BCcampus, in a discussion on:How AI might accelerate responsive open education practicesWhat inequalities might become more entrenched through AI applicationsThe future of open education in an ecosystem shaped by AI systemsThe purpose of this webinar is to shape the discourse about these pressing issues, and to invite multiple perspectives as we tackle these challenges together. REGISTER HERE

What happens when you put art historians, conservators, and materials scientists in the same room? Join MIT Libraries’ Department of Distinctive Collections for a viewing of the exhibition Refracted Histories followed by a panel discussion with the exhibition curators, conservators, and two Materials Sciences and Engineering faculty who worked on this exhibition. The panelists will discuss their collaboration preparing two historic stucco and stained glass windows in the Rotch Art Collection for display through the lenses of art history, architecture, and scientific research.The doors to the Nexus will open at 2 PM and the panel will begin at 2:30 and run to 3:30. Coffee and pastries will be provided. The exhibit will be open from 10-4 PM in the libraries’ Maihaugen Gallery (Building 14N-130). Participants are invited to view the exhibit before or after the event.

Speaker: Robert RenTitle: Theoretical Foundations of Flow-based Methods for Sampling and Generative Modeling

Ten minutes for your mind@2:50 every day at 2:50 pm in multiple time zones:Europa@2:50, EET, Athens, Helsinki (UTC+2) (7:50 am EST) https://us02web.zoom.us/j/88298032734Atlantica@2:50, EST, New York, Toronto (UTC-4) https://us02web.zoom.us/j/85349851047Pacifica@2:50, PST, Los Angeles, Vancouver (UTC=7) (5:50 pm EST) https://us02web.zoom.us/j/85743543699Almost everything works better again if you unplug it for a bit, including your mind. Stop by and unplug. Get the benefits of mindfulness without the fuss.@2:50 meets at the same time every single day for ten minutes of quiet together.No pre-requisite, no registration needed.Visit the website to view all @2:50 time zones each day.at250.org or at250.mit.edu

Time: 3:00 PM - 4:00 PMSpeaker: Amanda Burcroff (Harvard)Title: Positivity in cluster algebras and their generalizationsAbstract: This dissertation connects several perspectives on positivity in cluster algebras and scattering diagrams, which are powerful combinatorial tools deeply related to geometry, representation theory, and physics. We prove the Laurent positivity conjecture for generalized cluster algebras via a manifestly-positive combinatorial formula for rank 2 scattering diagrams. We also prove bijective results relating scattering diagrams and Dyck path combinatorics for quantum cluster algebras. Portions of this work are joint with Kyungyong Lee and Lang Mou.____________________________________________________________________________________________________Time: 4:15 PM - 5:15 PMSpeaker: Jiyang Gao (Harvard)Title: Tilted Richardson varietiesAbstract: We introduce and develop the theory of tilted Richardson varieties, a new family of subvarieties of the flag variety that generalize classical Richardson varieties. We establish their fundamental geometric properties, including irreducibility, explicit dimension formulas, and a stratification indexed by tilted Bruhat intervals. We construct a tilted analog of the Deodhar decomposition, leading to a combinatorial formula for tilted Kazhdan--Lusztig R-polynomials. We also develop a theory of total positivity for tilted Richardson varieties, showing that their totally nonnegative parts form a CW complex, thus addressing a question of Björner. Finally, we relate tilted Richardson varieties to quantum Schubert calculus, proving they coincide with minimal-degree two-point curve neighborhoods, and use this to compute their cohomology classes and derive new relations among Gromov--Witten invariants. This dissertation is based on joint work with Shiliang Gao and Yibo Gao.

MIT Program in Polymers and Soft Matter (PPSM) Seminar