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math.CO2014
Formal Zeta Function Expansions and the Frequency of Ramanujan Graphs
Joel Friedman
We show that logarithmic derivative of the Zeta function of any regular graph is given by a power series about infinity whose coefficients are given in terms of the traces of power…
cs.DM2014★ 17 cited
The Relativized Second Eigenvalue Conjecture of Alon
Joel Friedman, David-Emmanuel Kohler
We prove a relativization of the Alon Second Eigenvalue Conjecture for all -regular base graphs, , with : for any , we show that a random covering map of degree…