So-called "excitable" media support nonlinear waves that propagate as pulses, e.g., the action potential in nerve fibers and heart muscle, and the oxidation pulse in certain chemical reactions. In two ...

This is a preview. Log in through your library . Abstract We establish the Strauss conjecture for nontrapping obstacles when the spatial dimension n is two. As pointed out by Hidano, Metcalfe, Smith, ...