Codice  QDD227 
Titolo  Spiraling asymptotic profiles of competitiondiffusion systems 
Data  20170706 
Autore/i  Terracini, S.; Verzini, G.; Zilio, A. 
Link  Download full text 
Abstract  This paper describes the structure of the nodal set of segregation profiles arising in the singular limit of planar, stationary, reactiondiffusion systems with strongly competitive interactions of Lotka Volterra type, when the matrix of the interspecific competition coefficients is asymmetric and the competition parameter tends to infinity. Unlike the symmetric case, when it is known that the nodal set consists in a locally finite collection of curves meeting with equal angles at a locally finite number of singular points, the asymmetric case shows the emergence of spiraling nodal curves, still meeting at locally isolated points with finite vanishing order. 
