Fall 2017

Michael Cohen and Directed Laplacians

Monday, Nov. 27, 2017 4:00 pm4:30 pm PST

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A sequence of recent works has led to the development of nearly-linear time solvers for linear equations in Directed Laplacians. Among other things, this gives the first nearly-linear time algorithm for computing the stable distribution of directed random walks. I'll talk about the overall approach to solving these equations, developed by Michael and his co-authors, and I'll outline how we combined it with approximate Gaussian elimination to get the first nearly-linear time solver for Directed Laplacians.