TY  - JOUR
AU  - Figalli, Alessio
TI  - A geometric lower bound on Grad's number
JO  - ESAIM: Control, Optimisation and Calculus of Variations
PY  - 2009
SP  - 569
EP  - 575
VL  - 15
IS  - 3
PB  - EDP-Sciences
UR  - http://www.numdam.org/articles/10.1051/cocv:2008032/
DO  - 10.1051/cocv:2008032
LA  - en
ID  - COCV_2009__15_3_569_0
ER  -