Orie 6334 Spectral Graph Theory Lecture 8
نویسندگان
چکیده
We also saw that λ2 = minR(y). The issue is that we may have vol(St) > vol(V −St). To fix this, we will modify y so that vol(supp(y)) ≤ m (recall that vol(V ) = 2m). The idea is to pick c such that the two sets {i : y(i) < c} and {i : y(i) > c} both have volume at most m, then find St for both of them and take the best one. This lecture is derived from Lau’s 2012 notes, Week 2, http://appsrv.cse.cuhk.edu.hk/~chi/ csc5160/notes/L02.pdf and Lau’s 2015 notes, Lecture 4, https://cs.uwaterloo.ca/~lapchi/ cs798/notes/L04.pdf.
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ORIE 6334 Spectral Graph Theory December 1 , 2016 Lecture 27 Remix
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