config : dict - Dictionary containing the problem configuration. It must contain the following mapping:
'support_idx': array_like - indeces of the nonzero elements in the object domain
"""
self.n=config['support_idx']
defwork(self,u):
"""
the projection IN THE PHYSICAL (time) DOMAIN, leaves the phase alone on the support, resets amplitude to 1 and sets amplitude to 1 with 0 phase outside support.
Parameters
----------
u : array_like - function in the physical domain to be projected