Affiliation: | Department of Mathematics, Friedrich-Alexander University,Erlangen 91058, Germany; School of Mathematical Sciences, Fudan University, Shanghai 200433, China.,Department of Mathematics, Friedrich-Alexander University,Erlangen-Nuremberg, Cauerstrasse 11, 91058 Erlangen, Germany. and School of Mathematical Sciences, Fudan University, Shanghai 200433, China; Shanghai Key Laboratory for Contemporary Applied Mathematic; Nonlinear Mathematical Modeling and Methods Laboratory. |