Apparently, this user prefers to keep an air of mystery about them.
16 Elliptic curves over QQ with identical 13-isogeny May 6 '13
15 Elliptic curves over QQ with isomorphic n-torsion Feb 25 '13
6 Picard number and torsion of Neron-Severi group of abelian varieties over a number field May 24 '11
5 connected component of the identity section in the special fiber of the Neron model under isogenies Jun 17 '11
4 Is there a formula for a hyperelliptic curve over QQ, such that its Jacobian contains a rational torsion point of extact order n, for any given n? Nov 6 '13