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Tagged with expander-graphs algebraic-number-theory
2
questions
7
votes
2
answers
520
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Constructing Ramanujan graphs from elliptic curves
Is there an exposition which explains how to do this step-by-step? (I see stray references and allusions to such a thing being possible but can't locate anything concretely)
Something to do with ``...
- 1,863
1
vote
1
answer
167
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A particular argument in the review on expanders by Hoory-Linial-Wigderson
I am thinking about the third bullet point on page 455 here, http://www.ams.org/journals/bull/2006-43-04/S0273-0979-06-01126-8/
Can someone explain what is the argument there which seems to conclude ...
- 1,863