2 papers
math.NT2022
The local-global principle for divisibility in CM elliptic curves
Brendan Creutz, Sheng Lu
We consider the local-global principle for divisibility in the Mordell-Weil group of a CM elliptic curve defined over a number field. For each prime we give sharp lower bounds…
math.DG2010
Biharmonic maps in two dimensions
Ye-Lin Ou, Sheng Lu
Biharmonic maps between surfaces are studied in this paper. We compute the bitension field of a map between surfaces with conformal metrics in complex coordinates. As applications,…