  In this article we study perturbations of local, nonlinear Dirichlet forms on
arbitrary topological measure spaces. We show that the semigroup of a local
Dirichlet form \(\mathcal{E}\) dominates the semigroup generated by another
functional \(\mathcal{F}\) if, and only if, \(\mathcal{F}\) is a specific zero
order perturbation of \(\mathcal{E}\). This helps to classify the perturbations
that lie between Neumann and Dirichlet boundary conditions.
