@article {2005,
	title = {Global solutions of the Hunter-Saxton equation},
	journal = {SIAM J. Math. Anal. 37 (2005) 996-1026},
	number = {SISSA;104/2004/M},
	year = {2005},
	abstract = {We construct a continuous semigroup of weak, dissipative solutions to a nonlinear partial differential equations modeling nematic liquid crystals. A new distance functional, determined by a problem of optimal transportation, yields sharp estimates on the continuity of solutions with respect to the initial data.},
	doi = {10.1137/050623036},
	url = {http://hdl.handle.net/1963/2256},
	author = {Alberto Bressan and Adrian Constantin}
}
