@article {2018,
	title = {A minimization approach to the wave equation on time-dependent domains},
	number = {SISSA;21/2018/MATE},
	year = {2018},
	institution = {SISSA},
	abstract = {We prove the existence of weak solutions to the homogeneous wave equation
on a suitable class of time-dependent domains. Using the approach suggested by De Giorgi
and developed by Serra and Tilli, such solutions are approximated by minimizers of suitable
functionals in space-time.},
	url = {http://preprints.sissa.it/handle/1963/35318},
	author = {Gianni Dal Maso and Lucia De Luca}
}
