Spatiotemporal patterns in the Turing-Takens-Bogdanov scenario

Master Thesis presentation:

Many spatial dinamical systems exhibit the coexistence of diffusion drive in-

stabilities (Turing bifurcation) and Homoclinic of the homogeneous solution.

However, the interaction between these bifurcation has not been deeply studied

in the literature. In this thesis we explore the interaction between a Turing and

a Homoclinic bifurcation in a Reaction-Diffusion system. For this purpose we

incorporate a diffusion term to the normal form for the Cusp Takens-Bogdanov

codimension-3 point, in such a way that a Turing instability might occur. We

analyse the spatio-temporal bifurcation and their interactions. These bifurca-

tions curves converge in a new high codimension point, the called Turin-Takens-

Bogdanov point. The system has shown a wide variety of stable solutions such as

steady patterns, homogeneous oscilatory states , different more complex spatio-

temporal periodic solution, pseudo-periodic states and turbulent regimes.


Contact details:

Damià Gomila
971 25 98 37
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