Sparsifying Sums of Positive Semidefinite Matrices, by Pravesh Kothari
Автор: CSAChannel IISc
Загружено: 2026-01-20
Просмотров: 58
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Date : 15th Jan 2026
Abstract: I will talk about a new instance-specific sparsification theorem for sums of PSD matrices. As a corollary, I will show that every Cayley graph on any group has a weighted Cayley sparsifier with O(\log^4 |G|) generators.
Based on joint work with Arpon Basu (Princeton), Yang Liu (CMU), and Raghu Meka (UCLA).
Link to the talk: https://www.csa.iisc.ac.in/theorysemi...
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