We prove the radial symmetry of the solutions of second-order nonlinear elliptic equations for overdetermined Dirichlet and Neumann boundary value problems. In addition, a global uniqueness theorem of Holmgren type is given for nonlinear elliptic equations. (C) 2010 Elsevier Ltd. All rights reserved.
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UNICAL, Dipartimento Matemat, Ponte Pietro Bucci 31B, I-87036 Cosenza, ItalyUNICAL, Dipartimento Matemat, Ponte Pietro Bucci 31B, I-87036 Cosenza, Italy
Esposito, Francesco
Sciunzi, Berardino
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UNICAL, Dipartimento Matemat, Ponte Pietro Bucci 31B, I-87036 Cosenza, ItalyUNICAL, Dipartimento Matemat, Ponte Pietro Bucci 31B, I-87036 Cosenza, Italy
Sciunzi, Berardino
Trombetta, Alessandro
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UNICAL, Dipartimento Matemat, Ponte Pietro Bucci 31B, I-87036 Cosenza, ItalyUNICAL, Dipartimento Matemat, Ponte Pietro Bucci 31B, I-87036 Cosenza, Italy