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- Eyal Rozenman, Salil P. Vadhan
- Electronic Colloquium on Computational Complexity
- 2005

We introduce a " derandomized " analogue of graph squaring. This operation increases the connectivity of the graph (as measured by the second eigenvalue) almost as well as squaring the graph does, yet only increases the degree of the graph by a constant factor, instead of squaring the degree. One application of this product is an alternative proof of… (More)

- Alon Amit, Nathan Linial, Jirí Matousek, Eyal Rozenman
- SODA
- 2001

We describe here a simple probabilistic model for graphs that are lifts of a fixed base graph <i>G</i>, i.e., those graphs from which there is a covering man onto <i>G</i>. Our aim is to investigate the properties of typical graphs in this class. In particular, we show that almost every lift of <i>G</i> is δ(<i>G</i>)-connected where δ(<i>G</i>)… (More)

- Nathan Linial, Eyal Rozenman
- Graphs and Combinatorics
- 2002

- Nathan Linial, Eyal Rozenman
- Combinatorica
- 2005

- Salil P. Vadhan, Luca Trevisan, +61 authors Shrenik Shah
- 2010

R in sample Vol. xx, No xx (xxxx) 1–180 c xxxx xxxxxxxxx DOI: xxxxxx Abstract Pseudorandomness is the theory of efficiently generating objects that " look random " despite being constructed using little or no randomness. This survey of the subject places particular emphasis on the intimate connections that have been discovered between a variety of… (More)

- Eyal Rozenman, Aner Shalev, Avi Wigderson
- Theory of Computing
- 2006

We construct a sequence of groups G n , and explicit sets of generators Y n ⊂ G n , such that all generating sets have bounded size, and the associated Cayley graphs are all expanders. The group G 1 is the alternating group A d , the set of even permutations on the elements {1, 2,. .. , d}. The group G n is the group of all even symmetries of the rooted… (More)

- Eyal Rozenman, Aner Shalev, Avi Wigderson
- STOC
- 2004

We assume that for some <i>fixed</i> large enough integer d, the symmetric group S<inf>d</inf> can be generated as an expander using d<sup>1/30</sup> generators. Under this assumption, we explicitly construct an infinite family of groups G<inf>n</inf>, and explicit sets of generators Y<inf>n</inf> ⊂ G<inf>n</inf>, such that all generating sets have… (More)

- Salil P. Vadhan, Luca Trevisan, +59 authors Greg Price
- 2012

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