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math.NT2005★ 1 cited
Ramanujan Graphs on Cosets of
Wen-Ching Winnie Li, Yotsanan Meemark
In this paper we study Cayley graphs on $\PGL_2(\mathbb F_q)$ mod the unipotent subgroup, the split and nonsplit tori, respectively. Using the Kirillov models of the representation…
math.NT1999
Coverings of curves with asymptotically many rational points
Wen-Ching Li, Hiren Maharaj
The number A(q) is the upper limit of the ratio of the maximum number of points of a curve defined over $\Fq$ to the genus. By constructing class field towers with good parameters…