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Tricritical directed percolation in 2+1 dimensions
Peter Grassberger
We present detailed simulations of a generalization of the Domany-Kinzel model to 2+1 dimensions. It has two control parameters and which describe the probabilities o…
Temporal scaling at Feigenbaum points and non-extensive thermodynamics
Peter Grassberger
We show that recent claims for the non-stationary behaviour of the logistic map at the Feigenbaum point based on non-extensive thermodynamics are either wrong or can be easily dedu…
Earthquake recurrence as a record breaking process
Joern Davidsen, Peter Grassberger, Maya Paczuski
Extending the central concept of recurrence times for a point process to recurrent events in space-time allows us to characterize seismicity as a record breaking process using only…
Collapsing lattice animals and lattice trees in two dimensions
Hsiao-Ping Hsu, Peter Grassberger
We present high statistics simulations of weighted lattice bond animals and lattice trees on the square lattice, with fugacities for each non-bonded contact and for each bond betwe…
The coil-globule transition of confined polymers
Hsiao-Ping Hsu, Peter Grassberger
We study long polymer chains in a poor solvent, confined to the space between two parallel hard walls. The walls are energetically neutral and pose only a geometric constraint whic…