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SUMMARY:Manolis Tsakiri (ShanghaiTech University)
DTSTART:20200514T140000Z
DTEND:20200514T150000Z
DTSTAMP:20260423T035633Z
UID:VSAMRT/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/VSAMRT/5/">F
 initeness of fibers in matrix completion via Plucker coordinates</a>\nby M
 anolis Tsakiri (ShanghaiTech University) as part of Virtual seminar on alg
 ebraic matroids and rigidity theory\n\n\nAbstract\nWe describe a family of
  maximal elements of the algebraic matroid of the determinantal variety of
  at most rank-r matrices of size m x n over an infinite field k. For this\
 , we formulate matrix completion as a hyperplane sections problem on the G
 rassmannian Gr(r\,m) and use a family of local coordinates on Gr(r\,m) ind
 uced by linkage matching fields\, as described by Sturmfels & Zelevinsky (
 1993). Along the way we prove a conjecture of Rong\, Wang & Xu (2019).\n
LOCATION:https://researchseminars.org/talk/VSAMRT/5/
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