return an (infinite) time range since the operator is constant

Description

some functions dealing with DecompOps in general rely on this so we have to implement it even though the timerange is always the same: (-inf,inf)

Arguments

Author(s)

Carlos A. Sierra <csierra@bgc-jena.mpg.de>, Markus Mueller <mamueller@bgc-jena.mpg.de>

Results