TY  - JOUR
AU  - Guan, Qiʼan
AU  - Zhou, Xiangyu
TI  - Optimal constant problem in the $ {L}^{2}$ extension theorem
JO  - Comptes Rendus. Mathématique
PY  - 2012
SP  - 753
EP  - 756
VL  - 350
IS  - 15-16
PB  - Elsevier
UR  - http://www.numdam.org/articles/10.1016/j.crma.2012.08.007/
DO  - 10.1016/j.crma.2012.08.007
LA  - en
ID  - CRMATH_2012__350_15-16_753_0
ER  -