Colloquia & Seminars

Title: Rigidity, expansion and polytopes

Colloquium Speaker: Eran Nevo (Hebrew University of Jerusalem) Title: Rigidity, expansion and polytopes Abstract: Given a graph G and an embedding of its vertices in R^d, what continuous motions of the vertices preserve all edge lengths? Clearly all motions induced by an isometry of R^d do, these are the trivial motions; are there any others? If the answer is NO for all (equivalently, for one) generic embedding, G is called d-rigid. What are the d-rigid graphs? This problem has been extensively studied since the 70s, and is still widely open for d≥3. It is studied mainly from algebraic geometry and combinatorial points of view. Variants of it, especially in dimensions 2 and 3, are of importance also beyond mathematics, e.g. in...

Title: Algebra Seminar

Algebra Seminar  

Title: Differential Geometry and Physics Seminar

Differential Geometry and Physics Seminar Speaker: Jian Song, Rutgers  

Title: Member Seminar

Member Seminar Speaker: tba  

Title: Differential Geometry and Physics Seminar

Differential Geometry and Physics Seminar Speaker: Dylan Galt, Harvard    

Title: Member Seminar

Member Seminar Speaker: tba

Title: Differential Geometry and Physics Seminar

Differential Geometry and Physics Seminar Speaker: Charles Ouyang, Wash U  

Title: Member Seminar

Member Seminar Speaker: tba

Title: Interaction of Statistics and Geometry: A New Landscape for Data Science

Colloquium Speaker: Zhigang Yao (National University of Singapore) Title: Interaction of Statistics and Geometry: A New Landscape for Data Science Abstract:  Classical statistics views data as real numbers or vectors in Euclidean space, but modern challenges increasingly involve data with intrinsic geometric structures. A central problem in this direction is manifold fitting, with origins in H. Whitney’s work of the 1930s. The Geometric Whitney Problems ask: given a set, when can we construct a smooth 𝑑-dimensional manifold that approximates it, and how accurately can we estimate it? In this talk, I will discuss recent progress on manifold fitting and its role in bridging geometry and data science. While many existing methods rely on restrictive assumptions, the manifold hypothesis—that data often...

Title: CMSA Q&A Seminar: Hugh Woodin

CMSA Q&A Seminar Speaker: Hugh Woodin, Harvard  

Title: Differential Geometry and Physics Seminar

Differential Geometry and Physics Seminar Speaker: Claudia Yao, Harvard      

Title: Member Seminar

Member Seminar Speaker: tba

Title: Colloquium

Colloquium Speaker: Yue Lu details TBA

Title: Differential Geometry and Physics Seminar

Differential Geometry and Physics Seminar Speaker: Surya Raghavendran, Yale      

Title: Member Seminar

Member Seminar Speaker: tba