From the article, it sounds like there are. It's pretty clear that it was painted by someone called Peter Doige, who has nothing to do with Peter Doig.
But the owner of this painting isn't happy with that, and wants to appeal to authorities. At some point, courts are the authority you reach.
But the owner of this painting isn't happy with that, and wants to appeal to authorities. At some point, courts are the authority you reach.