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"Twice-Ramanujan Sparsifiers."
Joshua D. Batson, Daniel A. Spielman, Nikhil Srivastava (2012)
- Joshua D. Batson, Daniel A. Spielman, Nikhil Srivastava:
Twice-Ramanujan Sparsifiers. SIAM J. Comput. 41(6): 1704-1721 (2012)
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