%0 Journal Article %A Ananth N. Shankar %A Arul Shankar %A Yunqing Tang %A Salim Tayou %T Exceptional jumps of Picard ranks of reductions of K3 surfaces over number fields %J Forum of Mathematics, Pi %D 2022 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1017/fmp.2022.14/ %R 10.1017/fmp.2022.14 %G en %F 10_1017_fmp_2022_14