TY - JOUR
T1 - Short average distribution of a prime counting function over families of elliptic curves
AU - Giri, Sumit
N1 - Publisher Copyright:
© 2019
PY - 2020/7
Y1 - 2020/7
N2 - Let E be an elliptic curve defined over Q and let N be a positive integer. Then, ME(N) counts the number of primes p such that the group Ep(Fp) is of order N. For a given positive integer ℓ, we study the probability of the event {ME(N)=ℓ}. In an earlier joint work with Balasubramanian, we showed that ME(N) follows the Poisson distribution when an average is taken over a family of elliptic curves with parameters A and B where [Formula presented] and [Formula presented] for a positive integer ℓ and any γ>0. In this paper, we show that for sufficiently large N, the same result holds even if we take A and B in the range [Formula presented] and [Formula presented] for any ϵ>0.
AB - Let E be an elliptic curve defined over Q and let N be a positive integer. Then, ME(N) counts the number of primes p such that the group Ep(Fp) is of order N. For a given positive integer ℓ, we study the probability of the event {ME(N)=ℓ}. In an earlier joint work with Balasubramanian, we showed that ME(N) follows the Poisson distribution when an average is taken over a family of elliptic curves with parameters A and B where [Formula presented] and [Formula presented] for a positive integer ℓ and any γ>0. In this paper, we show that for sufficiently large N, the same result holds even if we take A and B in the range [Formula presented] and [Formula presented] for any ϵ>0.
KW - Barban-Davenport-Halberstam conjecture
KW - Elliptic curve
KW - Finite field
KW - Group order
KW - Prime k-tuple
UR - http://www.scopus.com/inward/record.url?scp=85077564576&partnerID=8YFLogxK
U2 - 10.1016/j.jnt.2019.11.011
DO - 10.1016/j.jnt.2019.11.011
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AN - SCOPUS:85077564576
SN - 0022-314X
VL - 212
SP - 376
EP - 408
JO - Journal of Number Theory
JF - Journal of Number Theory
ER -