We are concerned with sign-changing solutions of the following gauged nonlinear Schrodinger equation in dimension two including the so-called Chern-Simons term {-Delta u + omega u + (h2(vertical bar x vertical bar)/vertical bar x vertical bar(2) + integral(+infinity)(vertical bar x vertical bar) h(s)/s u(2)(s) ds) u = u = lambda vertical bar u vertical bar(p-2) u in R-2, u(x) = u(vertical bar x vertical bar) is an element of H-1(R-2), where omega, lambda > 0, p is an element of (4, 6) and h(s) = 1/2 integral(s)(0) tau u(2)(tau)d tau. Via a novel perturbation approach and the method of invarian...
