There is also an alternative, electrostatic interpretation of quadrature domains: a domain D is a quadrature domain if a uniform distribution of electric charge on D creates the same electrostatic field outside D as does a k-tuple of point charges at the points z1, …, zk.
There is also an alternative, static interpretation of quadrature domains: a domain D is a quadrature domain if a uniform distribution of electric charge on D generates the same electrostatic field outside D as does a k-tuple of point charges at the points z1, …, zk.