TY - GEN AU - Gálvez López, José Antonio AU - Mira, Pablo PY - 2021 UR - http://hdl.handle.net/10481/71474 AB - Let u denote a solution to a rotationally invariant Hessian equation F(D(2)u) = 0 on a bounded simply connected domain Omega subset of R-2, with constant Dirichlet and Neumann data on partial derivative Omega. We prove that if u is real analytic and... LA - eng PB - Mathematical Sciences Publishers KW - Overdetermined problems KW - Fully nonlinear equations KW - Poincaré-Hopf index TI - Serrin's overdetermined problem for fully nonlinear nonelliptic equations DO - 10.2140/apde.2021.14.1429 ER -