Existence and stability of heteroclinic networks in R4

Room M031
Friday, 17 April, 2015 - 13:30

We construct networks from simple robust heteroclinic cycles in R4.
Under appropriate assumptions only very few ways exist by which cycles can be joined together in a network.
Those of types B and C have been known and investigated in the last decades, while type A networks are mostly absent from the literature.
Using the stability index defined by Podvigina and Ashwin (Nonlinearity 24, 887–929, 2011) we compare non-asymptotic stability properties of networks that are geometrically identical, but made up of cycles of different type, i.e. their corresponding vector fields commute with different symmetry groups.

Speaker: 

Alexander Lohse (Universität Hamburg, Germany)