March Tian Boedihardjo
March Tian Boedihardjo, ETH Zürich
Sharp Matrix Concentration
Monday, November 07, 2022 4:00PM to 5:00PM
Zoom: https://yale.zoom.us/j/92411077917?pwd=aXhnTnFGRXFoaTVDczNjeFFKeWpTQT09Password: 24
Information and Abstract:
Tropp’s matrix concentration inequalities are widely used in applied mathematics and other areas. All these inequalities involve a log-dimension factor. As pointed out in Tropp’s monograph in 2015, “It remains a major open question to find a simple quantity, from the coefficients B_k, that decides whether E||Z||^2 contains a dimensional factor or not.” I will present a solution to this problem.
Joint work with Afonso Bandeira and Ramon van Handel. Paper: https://arxiv.org/pdf/2108.06312.pdf
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